diff --git a/anwendung/src/components/Background.jsx b/anwendung/src/components/Background.jsx
new file mode 100644
index 0000000..d6d2682
--- /dev/null
+++ b/anwendung/src/components/Background.jsx
@@ -0,0 +1,33 @@
+import React from "react";
+
+export default function Background()
+{
+    return (
+        <div style={{
+            position: "absolute",
+            width: "100%",
+            height: "100%",
+            overflow: "clip",
+            pointerEvents: "none"
+        }}>
+            <div style={{
+                position: "absolute",
+                transform: "skew(20deg)",
+                width: "100%",
+                height: "100%",
+                zIndex: -10,
+                backgroundColor: "#f2f2f2",
+                borderTopLeftRadius: 400,
+                borderBottomRightRadius: 800,
+
+            }}></div>
+            <div style={{
+                position: "absolute",
+                width: "100%",
+                height: "100%",
+                zIndex: -11,
+                backgroundColor: "#346991",
+            }}></div>
+        </div>
+    );
+}
\ No newline at end of file
diff --git a/anwendung/src/components/InputForm.jsx b/anwendung/src/components/InputForm.jsx
index 0ad5a58..a754985 100644
--- a/anwendung/src/components/InputForm.jsx
+++ b/anwendung/src/components/InputForm.jsx
@@ -1,6 +1,7 @@
 import Button from "@/components/Button";
 import {useRouter} from "next/router";
 import {useEffect, useState} from "react";
+import Background from "@/components/Background";
 
 let userInfo = []
 
@@ -13,13 +14,11 @@ export default function InputForm(p) {
             this.checked = false;
         }
 
-        setChecked(checked)
-        {
+        setChecked(checked) {
             this.checked = checked;
         }
 
-        setModule(module)
-        {
+        setModule(module) {
             this.module = module;
         }
     }
@@ -103,13 +102,12 @@ export default function InputForm(p) {
             }
         }
 
-        if(!found) {
+        if (!found) {
             userInfo.push(new UserInfo(user.id, module));
         }
     }
 
-    function onCheckBoxClicked(user, e)
-    {
+    function onCheckBoxClicked(user, e) {
         onModuleClicked(user, "");
 
         let found = false;
@@ -122,7 +120,7 @@ export default function InputForm(p) {
             }
         }
 
-        if(!found) {
+        if (!found) {
             let temp = new UserInfo(user.id, "");
             temp.setChecked(e.target.checked);
             userInfo.push(temp);
@@ -131,19 +129,38 @@ export default function InputForm(p) {
 
     return (
         <>
-            <div className="inputForm round-border">
-                <h3>SemesterName</h3>
-                <input className="courseNameInput" value={courseName} onChange={(e) => setCourseName(e.target.value)}/>
+            <Background/>
+            <div className="inputForm box-shadow">
+                <p style={{
+                    fontSize: "18px",
+                    color: "#777777",
+                    fontWeight: 500,
+                    width: 150
+                }}>SemesterName</p>
+                <input className="courseNameInput box-shadow" value={courseName}
+                       onChange={(e) => setCourseName(e.target.value)}/>
                 <div className="semesterRangeInput">
                     <div className="semesterDateLables">
-                        <p className="semesterDateLable">Semesterstart</p>
-                        <p className="semesterDateLable">Semesterende</p>
+                        <p className="semesterDateLable" style={{
+                            fontSize: " 18px",
+                            color: "#777777",
+                            fontWeight: 500,
+                            width: 150
+                        }}>Semesterstart</p>
+                        <p className="semesterDateLable" style={{
+                            fontSize: " 18px",
+                            color: "#777777",
+                            fontWeight: 500,
+                            width: 150
+                        }}>Semesterende</p>
                     </div>
                     <div className="semesterDateInputPair">
-                        <input type="date" id="start" name="trip-start" value={startDate}
+                        <input type="date" id="start" className={"box-shadow selector"} value={startDate}
+                               style={{padding: 5}}
                                onChange={(e) => setStartDate(e.target.value)}/>
                         <p className="inputFieldSeperator">-</p>
-                        <input type="date" id="start" name="trip-start" value={endDate}
+                        <input type="date" id="start" className={"box-shadow selector"} value={endDate}
+                               style={{padding: 5}}
                                onChange={(e) => setEndDate(e.target.value)}/>
                     </div>
                 </div>
@@ -151,19 +168,57 @@ export default function InputForm(p) {
                     <table>
                         <tbody>
                         <tr>
-                            <th></th>
-                            <th>Dozent</th>
-                            <th>Modul</th>
+                            <th style={{
+                                fontSize: " 18px",
+                                color: "#777777",
+                                fontWeight: 500,
+                            }}>Wählen
+                            </th>
+                            <th style={{
+                                fontSize: " 18px",
+                                color: "#777777",
+                                fontWeight: 500,
+                            }}>Freischalten
+                            </th>
+                            <th style={{
+                                fontSize: " 18px",
+                                color: "#777777",
+                                fontWeight: 500,
+                                textAlign: "center"
+                            }}>Dozent
+                            </th>
+                            <th style={{
+                                fontSize: " 18px",
+                                color: "#777777",
+                                fontWeight: 500,
+                                textAlign: "center",
+                            }}>Modul
+                            </th>
                         </tr>
                         {users.map(user => (
                             <tr>
-                                <td><input type="checkbox" onChange={(e) => {
+
+                                <td><div style={{
+                                    display: "flex",
+                                    flexDirection: "row",
+                                    justifyContent: "center",
+                                }}><input type="checkbox" onChange={(e) => {
                                     onCheckBoxClicked(user, e);
-                                }}/></td>
-                                <td>{user.firstName + " " + user.lastName}</td>
-                                <select id={"userSelect"} name={"userSelect"} multiple={false} style={{
+                                }}/></div></td>
+
+                                <td><div style={{
+                                    display: "flex",
+                                    flexDirection: "row",
+                                    justifyContent: "center",
+                                }}><input type="checkbox" onChange={(e) => {
+                                    onCheckBoxClicked(user, e);
+                                }}/></div></td>
+                                <td style={{}}>{user.firstName + " " + user.lastName}</td>
+                                <select id={"userSelect"} name={"userSelect"} className={"box-shadow selector"}
+                                        multiple={false} style={{
                                     maxHeight: 80,
-                                    border: "1px solid black"
+                                    marginTop: 10,
+                                    padding: "5px 2px"
                                 }} onChange={(e) => {
                                     onModuleClicked(user, e.target.value)
                                 }}>
@@ -179,10 +234,10 @@ export default function InputForm(p) {
                     </table>
                 </div>
                 <div id="buttons">
-                    <Button color="red" width="100px" height="30px" text="Abbrechen" onClick={() => {
+                    <Button color="rgba(54,54,54,0.64)" width="100px" height="30px" text="Abbrechen" onClick={() => {
                         router.back()
                     }}/>
-                    <Button color="green" width="100px" height="30px" text="Speichern" onClick={() => {
+                    <Button color="#77932b" width="100px" height="30px" text="Speichern" onClick={() => {
                         onCreateClicked()
                     }}/>
                 </div>
diff --git a/anwendung/src/pages/index.js b/anwendung/src/pages/index.js
index b53f8fc..8e00136 100644
--- a/anwendung/src/pages/index.js
+++ b/anwendung/src/pages/index.js
@@ -12,6 +12,7 @@ import Login from "@/components/Login";
 import Test from "@/components/Test";
 import BasicDateCalendar from "@/components/CalendarSideBar";
 import {randomInt} from "next/dist/shared/lib/bloom-filter/utils";
+import Background from "@/components/Background";
 
 
 const inter = Inter({subsets: ['latin']})
@@ -22,32 +23,15 @@ export default function Home(p) {
 
 
         <div className={"normal-centered"}>
-            <div style={{
-                position: "absolute",
-                width: "100%",
-                height: "100%",
-                overflow: "clip",
-                pointerEvents: "none"
-            }}>
-                <div style={{
-                    position: "absolute",
-                    transform: "skew(20deg)",
-                    width: "100%",
-                    height: "100%",
-                    zIndex: -10,
-                    backgroundColor: "#f2f2f2",
-                    borderTopLeftRadius: 400,
-                    borderBottomRightRadius: 800,
-
-                }}></div>
-                <div style={{
-                    position: "absolute",
-                    width: "100%",
-                    height: "100%",
-                    zIndex: -11,
-                    backgroundColor: "#346991",
-                }}></div>
-            </div>
+            <Background/>
+            <h1 style={{
+                fontSize: 40,
+                fontWeight: "bold",
+                color: "#77932b",
+                marginBottom: "5%",
+                textShadow: "2px 2px 2px rgba(0, 0, 0, 0.2)",
+                textAlign: "center"
+            }}>Willkommen in deinem Vorlesungsplaner</h1>
             <Login/>
         </div>
     )
diff --git a/anwendung/src/pages/semesteroverview.js b/anwendung/src/pages/semesteroverview.js
index 19c1549..e6bb60d 100644
--- a/anwendung/src/pages/semesteroverview.js
+++ b/anwendung/src/pages/semesteroverview.js
@@ -4,6 +4,7 @@ import SemesterTile from "@/components/SemesterTile";
 import InputForm from "@/components/InputForm";
 import {useRouter} from "next/router";
 import PopUp from "@/components/PopUp";
+import Background from "@/components/Background";
 
 export default function SemesterOverview(p)
 {
@@ -91,32 +92,7 @@ export default function SemesterOverview(p)
 
     return (
         <div className={"semester-overview"}>
-            <div style={{
-                position: "absolute",
-                width: "100%",
-                height: "100%",
-                overflow: "clip",
-                pointerEvents: "none"
-            }}>
-                <div style={{
-                    position: "absolute",
-                    transform: "skew(20deg)",
-                    width: "100%",
-                    height: "100%",
-                    zIndex: -10,
-                    backgroundColor: "#f2f2f2",
-                    borderTopLeftRadius: 400,
-                    borderBottomRightRadius: 800,
-
-                }}></div>
-                <div style={{
-                    position: "absolute",
-                    width: "100%",
-                    height: "100%",
-                    zIndex: -11,
-                    backgroundColor: "#346991",
-                }}></div>
-            </div>
+            <Background/>
             {
                 entries.map(e => (<SemesterTile text={e.name} onClick={(f) => onClickSemester(e, f)} onButtonDeleteClick={() => {
                         localStorage.setItem("currentsid", e.id)
diff --git a/anwendung/src/styles/globals.css b/anwendung/src/styles/globals.css
index e12320e..58bfc89 100644
--- a/anwendung/src/styles/globals.css
+++ b/anwendung/src/styles/globals.css
@@ -354,16 +354,36 @@ input {
 
 .courseNameInput {
     width: 300px;
+    padding: 5px;
+    border: none;
+    background-color: white;
+    border-radius: 5px;
+    font-family: Arial, serif;
+}
+
+.selector
+{
+    border-width: 0;
+    border-radius: 10px;
 }
 
 .semesterDateInput {
     width: 150px;
+    padding: 5px;
+    border: none;
+    background-color: white;
+    border-radius: 5px;
+    font-family: Arial, serif;
 }
 
 .semesterDateLables, .semesterDateInputPair {
     display: flex;
     flex-direction: row;
     justify-content: left;
+    padding: 0;
+    border: none;
+    background-color: white;
+    border-radius: 5px;
 }
 
 .inputFieldSeperator {
@@ -372,8 +392,7 @@ input {
 }
 
 .semesterDateLable {
-    width: 150px;
-    margin-right: 40px;
+    margin-right: 32px;
 }
 
 .semesterRangeInput {
@@ -384,9 +403,11 @@ input {
     width: 600px;
     height: 600px;
     padding: 20px;
-    border: solid;
+    /*border: solid;*/
+    border-radius: 10px;
     display: flex;
     flex-direction: column;
+    background-color: white;
 }
 
 #buttons {
@@ -394,11 +415,12 @@ input {
     display: flex;
     flex-direction: row;
     align-items: flex-end;
+    gap: 10px;
 }
 
 .dozentSelector {
     height: 350px;
-    border: solid;
+    /*border: solid;*/
     margin-top: 20px;
     width: 500px;
     padding: 10px;
@@ -439,9 +461,8 @@ Login
 .input {
     padding: 5px;
     border: none;
-    background-color: #e9e9e9;
+    background-color: white;
     border-radius: 5px;
-    font-family: Arial, serif;
     font-size: 16px;
 }
 
diff --git a/backend/database.mv.db b/backend/database.mv.db
index ac50270..38bcfbd 100644
Binary files a/backend/database.mv.db and b/backend/database.mv.db differ
diff --git a/backend/database.trace.db b/backend/database.trace.db
index 9928afc..49472f9 100644
--- a/backend/database.trace.db
+++ b/backend/database.trace.db
@@ -127070,3 +127070,1137 @@ No data is available [2000-214]
 2023-05-24 00:48:35 jdbc[3]: exception
 org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
 No data is available [2000-214]
+2023-05-24 09:20:18 database: flush
+org.h2.message.DbException: Allgemeiner Fehler: "java.lang.IllegalStateException: The write format 2 is larger than the supported format 1, and the file was not opened in read-only mode [1.4.200/5]"
+General error: "java.lang.IllegalStateException: The write format 2 is larger than the supported format 1, and the file was not opened in read-only mode [1.4.200/5]" [50000-200]
+	at org.h2.message.DbException.get(DbException.java:194)
+	at org.h2.message.DbException.convert(DbException.java:347)
+	at org.h2.mvstore.db.MVTableEngine$1.uncaughtException(MVTableEngine.java:93)
+	at org.h2.mvstore.MVStore.handleException(MVStore.java:2877)
+	at org.h2.mvstore.MVStore.panic(MVStore.java:481)
+	at org.h2.mvstore.MVStore.<init>(MVStore.java:402)
+	at org.h2.mvstore.MVStore$Builder.open(MVStore.java:3579)
+	at org.h2.mvstore.db.MVTableEngine$Store.open(MVTableEngine.java:170)
+	at org.h2.mvstore.db.MVTableEngine.init(MVTableEngine.java:103)
+	at org.h2.engine.Database.getPageStore(Database.java:2659)
+	at org.h2.engine.Database.open(Database.java:675)
+	at org.h2.engine.Database.openDatabase(Database.java:307)
+	at org.h2.engine.Database.<init>(Database.java:301)
+	at org.h2.engine.Engine.openSession(Engine.java:74)
+	at org.h2.engine.Engine.openSession(Engine.java:192)
+	at org.h2.engine.Engine.createSessionAndValidate(Engine.java:171)
+	at org.h2.engine.Engine.createSession(Engine.java:166)
+	at org.h2.engine.Engine.createSession(Engine.java:29)
+	at org.h2.engine.SessionRemote.connectEmbeddedOrServer(SessionRemote.java:340)
+	at org.h2.jdbc.JdbcConnection.<init>(JdbcConnection.java:173)
+	at org.h2.jdbc.JdbcConnection.<init>(JdbcConnection.java:152)
+	at org.h2.Driver.connect(Driver.java:69)
+	at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:683)
+	at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:230)
+	at com.example.backend.anwprj.DataBaseHandler.<init>(DataBaseHandler.java:41)
+	at com.example.backend.anwprj.DataBaseHandler.getInstance(DataBaseHandler.java:24)
+	at com.example.backend.anwprj.controller.DayController.<init>(DayController.java:19)
+	at java.base/jdk.internal.reflect.DirectConstructorHandleAccessor.newInstance(DirectConstructorHandleAccessor.java:67)
+	at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:500)
+	at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:484)
+	at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:198)
+	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:87)
+	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1308)
+	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1199)
+	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:560)
+	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:520)
+	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:326)
+	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
+	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:324)
+	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200)
+	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:973)
+	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:917)
+	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:584)
+	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:146)
+	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:732)
+	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:434)
+	at org.springframework.boot.SpringApplication.run(SpringApplication.java:310)
+	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1304)
+	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1293)
+	at com.example.backend.BackendApplication.main(BackendApplication.java:12)
+Caused by: org.h2.jdbc.JdbcSQLNonTransientException: Allgemeiner Fehler: "java.lang.IllegalStateException: The write format 2 is larger than the supported format 1, and the file was not opened in read-only mode [1.4.200/5]"
+General error: "java.lang.IllegalStateException: The write format 2 is larger than the supported format 1, and the file was not opened in read-only mode [1.4.200/5]" [50000-200]
+	at org.h2.message.DbException.getJdbcSQLException(DbException.java:505)
+	at org.h2.message.DbException.getJdbcSQLException(DbException.java:429)
+	... 50 more
+Caused by: java.lang.IllegalStateException: The write format 2 is larger than the supported format 1, and the file was not opened in read-only mode [1.4.200/5]
+	at org.h2.mvstore.DataUtils.newIllegalStateException(DataUtils.java:950)
+	at org.h2.mvstore.MVStore.readStoreHeader(MVStore.java:741)
+	at org.h2.mvstore.MVStore.<init>(MVStore.java:396)
+	... 44 more
+2023-05-24 09:20:18 database: opening D:/DH/TIF22A_AnwProjekt_B/backend/database
+org.h2.message.DbException: Datei fehlerhaft beim Lesen des Datensatzes: null. Mögliche Lösung: Recovery Werkzeug verwenden
+File corrupted while reading record: null. Possible solution: use the recovery tool [90030-200]
+	at org.h2.message.DbException.get(DbException.java:194)
+	at org.h2.mvstore.db.MVTableEngine$Store.convertIllegalStateException(MVTableEngine.java:222)
+	at org.h2.mvstore.db.MVTableEngine$Store.open(MVTableEngine.java:182)
+	at org.h2.mvstore.db.MVTableEngine.init(MVTableEngine.java:103)
+	at org.h2.engine.Database.getPageStore(Database.java:2659)
+	at org.h2.engine.Database.open(Database.java:675)
+	at org.h2.engine.Database.openDatabase(Database.java:307)
+	at org.h2.engine.Database.<init>(Database.java:301)
+	at org.h2.engine.Engine.openSession(Engine.java:74)
+	at org.h2.engine.Engine.openSession(Engine.java:192)
+	at org.h2.engine.Engine.createSessionAndValidate(Engine.java:171)
+	at org.h2.engine.Engine.createSession(Engine.java:166)
+	at org.h2.engine.Engine.createSession(Engine.java:29)
+	at org.h2.engine.SessionRemote.connectEmbeddedOrServer(SessionRemote.java:340)
+	at org.h2.jdbc.JdbcConnection.<init>(JdbcConnection.java:173)
+	at org.h2.jdbc.JdbcConnection.<init>(JdbcConnection.java:152)
+	at org.h2.Driver.connect(Driver.java:69)
+	at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:683)
+	at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:230)
+	at com.example.backend.anwprj.DataBaseHandler.<init>(DataBaseHandler.java:41)
+	at com.example.backend.anwprj.DataBaseHandler.getInstance(DataBaseHandler.java:24)
+	at com.example.backend.anwprj.controller.DayController.<init>(DayController.java:19)
+	at java.base/jdk.internal.reflect.DirectConstructorHandleAccessor.newInstance(DirectConstructorHandleAccessor.java:67)
+	at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:500)
+	at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:484)
+	at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:198)
+	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:87)
+	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1308)
+	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1199)
+	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:560)
+	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:520)
+	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:326)
+	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
+	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:324)
+	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200)
+	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:973)
+	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:917)
+	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:584)
+	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:146)
+	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:732)
+	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:434)
+	at org.springframework.boot.SpringApplication.run(SpringApplication.java:310)
+	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1304)
+	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1293)
+	at com.example.backend.BackendApplication.main(BackendApplication.java:12)
+Caused by: org.h2.jdbc.JdbcSQLNonTransientConnectionException: Datei fehlerhaft beim Lesen des Datensatzes: null. Mögliche Lösung: Recovery Werkzeug verwenden
+File corrupted while reading record: null. Possible solution: use the recovery tool [90030-200]
+	at org.h2.message.DbException.getJdbcSQLException(DbException.java:622)
+	at org.h2.message.DbException.getJdbcSQLException(DbException.java:429)
+	... 45 more
+Caused by: java.lang.IllegalStateException: The write format 2 is larger than the supported format 1, and the file was not opened in read-only mode [1.4.200/5]
+	at org.h2.mvstore.DataUtils.newIllegalStateException(DataUtils.java:950)
+	at org.h2.mvstore.MVStore.readStoreHeader(MVStore.java:741)
+	at org.h2.mvstore.MVStore.<init>(MVStore.java:396)
+	at org.h2.mvstore.MVStore$Builder.open(MVStore.java:3579)
+	at org.h2.mvstore.db.MVTableEngine$Store.open(MVTableEngine.java:170)
+	... 42 more
+2023-05-24 09:37:07 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 09:37:07 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 09:37:44 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 09:37:44 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 09:37:44 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 09:37:48 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 09:37:48 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 09:37:53 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 09:37:53 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 09:37:53 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 09:38:06 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 09:38:06 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 09:41:48 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 09:41:48 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Allgemeiner Fehler: "java.lang.NullPointerException: Cannot invoke ""org.h2.result.ResultInterface.getRowId()"" because ""this.result"" is null"
+General error: "java.lang.NullPointerException: Cannot invoke ""org.h2.result.ResultInterface.getRowId()"" because ""this.result"" is null" [50000-214]
+	at org.h2.message.DbException.getJdbcSQLException(DbException.java:554)
+	at org.h2.message.DbException.getJdbcSQLException(DbException.java:477)
+	at org.h2.message.DbException.get(DbException.java:212)
+	at org.h2.message.DbException.convert(DbException.java:395)
+	at org.h2.message.DbException.toSQLException(DbException.java:367)
+	at org.h2.message.TraceObject.logAndConvert(TraceObject.java:365)
+	at org.h2.jdbc.JdbcResultSet.getInt(JdbcResultSet.java:339)
+	at com.example.backend.anwprj.DataBaseHandler.resultSetToSemester(DataBaseHandler.java:331)
+	at com.example.backend.anwprj.DataBaseHandler.getAllSemesters(DataBaseHandler.java:280)
+	at com.example.backend.anwprj.controller.SemesterController.getSemester(SemesterController.java:98)
+	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
+	at java.base/java.lang.reflect.Method.invoke(Method.java:578)
+	at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:207)
+	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:152)
+	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:118)
+	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:884)
+	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:797)
+	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
+	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1081)
+	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:974)
+	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1011)
+	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:903)
+	at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:564)
+	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:885)
+	at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:658)
+	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:205)
+	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
+	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
+	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)
+	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
+	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
+	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
+	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)
+	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
+	at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
+	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
+	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)
+	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
+	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
+	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
+	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)
+	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
+	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:166)
+	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90)
+	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:482)
+	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:115)
+	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93)
+	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
+	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:341)
+	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:390)
+	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63)
+	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:894)
+	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1741)
+	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52)
+	at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)
+	at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)
+	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
+	at java.base/java.lang.Thread.run(Thread.java:1623)
+Caused by: java.lang.NullPointerException: Cannot invoke "org.h2.result.ResultInterface.getRowId()" because "this.result" is null
+	at org.h2.jdbc.JdbcResultSet.isOnValidRow(JdbcResultSet.java:3547)
+	at org.h2.jdbc.JdbcResultSet.checkOnValidRow(JdbcResultSet.java:3551)
+	at org.h2.jdbc.JdbcResultSet.getInternal(JdbcResultSet.java:3570)
+	at org.h2.jdbc.JdbcResultSet.getIntInternal(JdbcResultSet.java:344)
+	at org.h2.jdbc.JdbcResultSet.getInt(JdbcResultSet.java:337)
+	... 51 more
+2023-05-24 09:41:48 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 09:41:49 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 09:41:49 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 09:58:17 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 09:58:19 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 09:58:19 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 09:58:21 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 09:58:21 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 09:58:21 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 09:58:35 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 09:58:35 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 09:58:36 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 09:58:36 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 09:58:36 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 09:58:37 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 09:58:37 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 09:58:39 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 10:00:15 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 10:00:15 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 10:00:21 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 10:00:21 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 10:00:21 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 10:00:22 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 10:00:22 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 10:00:24 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 10:00:24 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 10:00:24 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 10:00:25 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 10:00:25 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:10:07 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:10:07 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:10:08 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:10:08 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:10:08 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:10:11 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:10:11 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:10:13 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:10:13 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:10:14 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:10:14 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:10:14 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:10:18 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:10:18 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:11:58 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:11:58 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:11:58 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:12:03 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:12:03 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:12:45 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:12:45 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:12:45 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:12:48 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:12:48 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:13:29 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:13:29 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:13:29 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:14:06 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:14:21 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:14:26 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:14:31 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:14:35 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:14:45 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:14:52 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:15:49 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:16:01 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:16:08 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:16:52 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:16:56 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:16:56 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:16:59 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:16:59 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:17:00 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:17:00 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:17:04 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:17:04 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:17:05 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:17:05 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:17:05 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:17:11 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:17:11 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:17:34 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:17:34 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:17:34 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:17:52 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:17:52 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:19:06 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:19:06 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:19:06 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:19:24 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:19:29 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:19:29 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:21:40 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:21:46 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:21:53 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:22:11 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:36:17 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:36:17 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:36:39 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:36:39 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:37:04 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:37:04 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:37:04 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:41:11 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:52:30 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:52:30 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:52:52 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:52:52 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:52:55 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:52:55 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:52:56 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:52:56 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:53:04 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:53:04 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:53:41 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:53:41 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:53:46 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:53:46 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:53:46 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:53:54 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:53:54 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:54:02 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:54:02 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:54:02 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:54:02 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:54:03 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:54:03 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:54:04 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:54:04 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:54:04 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:54:05 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:54:05 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:54:50 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:54:50 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:54:50 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:54:51 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:54:51 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:54:52 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:54:52 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Allgemeiner Fehler: "java.lang.NullPointerException: Cannot invoke ""org.h2.result.ResultInterface.getRowId()"" because ""this.result"" is null"
+General error: "java.lang.NullPointerException: Cannot invoke ""org.h2.result.ResultInterface.getRowId()"" because ""this.result"" is null" [50000-214]
+	at org.h2.message.DbException.getJdbcSQLException(DbException.java:554)
+	at org.h2.message.DbException.getJdbcSQLException(DbException.java:477)
+	at org.h2.message.DbException.get(DbException.java:212)
+	at org.h2.message.DbException.convert(DbException.java:395)
+	at org.h2.message.DbException.toSQLException(DbException.java:367)
+	at org.h2.message.TraceObject.logAndConvert(TraceObject.java:365)
+	at org.h2.jdbc.JdbcResultSet.getInt(JdbcResultSet.java:339)
+	at com.example.backend.anwprj.DataBaseHandler.resultSetToUser(DataBaseHandler.java:546)
+	at com.example.backend.anwprj.DataBaseHandler.getAllUsers(DataBaseHandler.java:482)
+	at com.example.backend.anwprj.controller.UserController.getAllUsers(UserController.java:163)
+	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
+	at java.base/java.lang.reflect.Method.invoke(Method.java:578)
+	at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:207)
+	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:152)
+	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:118)
+	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:884)
+	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:797)
+	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
+	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1081)
+	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:974)
+	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1011)
+	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:903)
+	at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:564)
+	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:885)
+	at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:658)
+	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:205)
+	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
+	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
+	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)
+	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
+	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
+	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
+	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)
+	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
+	at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
+	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
+	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)
+	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
+	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
+	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
+	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)
+	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
+	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:166)
+	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90)
+	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:482)
+	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:115)
+	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93)
+	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
+	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:341)
+	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:390)
+	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63)
+	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:894)
+	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1741)
+	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52)
+	at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)
+	at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)
+	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
+	at java.base/java.lang.Thread.run(Thread.java:1623)
+Caused by: java.lang.NullPointerException: Cannot invoke "org.h2.result.ResultInterface.getRowId()" because "this.result" is null
+	at org.h2.jdbc.JdbcResultSet.isOnValidRow(JdbcResultSet.java:3547)
+	at org.h2.jdbc.JdbcResultSet.checkOnValidRow(JdbcResultSet.java:3551)
+	at org.h2.jdbc.JdbcResultSet.getInternal(JdbcResultSet.java:3570)
+	at org.h2.jdbc.JdbcResultSet.getIntInternal(JdbcResultSet.java:344)
+	at org.h2.jdbc.JdbcResultSet.getInt(JdbcResultSet.java:337)
+	... 51 more
+2023-05-24 11:54:52 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:54:55 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:54:55 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:56:02 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:56:25 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:56:25 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:56:25 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:56:26 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:56:26 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:56:27 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:56:27 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:56:27 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:56:28 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:56:28 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:56:52 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:56:52 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:56:52 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:56:53 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:56:53 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:56:54 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:56:54 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:56:54 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:57:01 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:57:01 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:57:05 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:57:05 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:57:06 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:57:06 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Allgemeiner Fehler: "java.lang.NullPointerException: Cannot invoke ""org.h2.result.ResultInterface.getRowId()"" because ""this.result"" is null"
+General error: "java.lang.NullPointerException: Cannot invoke ""org.h2.result.ResultInterface.getRowId()"" because ""this.result"" is null" [50000-214]
+	at org.h2.message.DbException.getJdbcSQLException(DbException.java:554)
+	at org.h2.message.DbException.getJdbcSQLException(DbException.java:477)
+	at org.h2.message.DbException.get(DbException.java:212)
+	at org.h2.message.DbException.convert(DbException.java:395)
+	at org.h2.message.DbException.toSQLException(DbException.java:367)
+	at org.h2.message.TraceObject.logAndConvert(TraceObject.java:365)
+	at org.h2.jdbc.JdbcResultSet.getInt(JdbcResultSet.java:339)
+	at com.example.backend.anwprj.DataBaseHandler.resultSetToUser(DataBaseHandler.java:546)
+	at com.example.backend.anwprj.DataBaseHandler.getAllUsers(DataBaseHandler.java:482)
+	at com.example.backend.anwprj.controller.UserController.getAllUsers(UserController.java:163)
+	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
+	at java.base/java.lang.reflect.Method.invoke(Method.java:578)
+	at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:207)
+	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:152)
+	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:118)
+	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:884)
+	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:797)
+	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
+	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1081)
+	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:974)
+	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1011)
+	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:903)
+	at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:564)
+	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:885)
+	at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:658)
+	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:205)
+	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
+	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
+	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)
+	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
+	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
+	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
+	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)
+	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
+	at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
+	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
+	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)
+	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
+	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
+	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
+	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)
+	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
+	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:166)
+	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90)
+	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:482)
+	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:115)
+	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93)
+	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
+	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:341)
+	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:390)
+	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63)
+	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:894)
+	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1741)
+	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52)
+	at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)
+	at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)
+	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
+	at java.base/java.lang.Thread.run(Thread.java:1623)
+Caused by: java.lang.NullPointerException: Cannot invoke "org.h2.result.ResultInterface.getRowId()" because "this.result" is null
+	at org.h2.jdbc.JdbcResultSet.isOnValidRow(JdbcResultSet.java:3547)
+	at org.h2.jdbc.JdbcResultSet.checkOnValidRow(JdbcResultSet.java:3551)
+	at org.h2.jdbc.JdbcResultSet.getInternal(JdbcResultSet.java:3570)
+	at org.h2.jdbc.JdbcResultSet.getIntInternal(JdbcResultSet.java:344)
+	at org.h2.jdbc.JdbcResultSet.getInt(JdbcResultSet.java:337)
+	... 51 more
+2023-05-24 11:57:06 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:58:28 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:58:49 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:59:18 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:59:43 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:59:46 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 11:59:46 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:00:13 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:00:16 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:00:16 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:01:26 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:01:34 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:01:37 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:01:40 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:01:43 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:01:58 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:01:58 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:03:32 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:03:35 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:03:35 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:03:58 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:04:06 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:04:11 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:04:11 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:04:20 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:05:29 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:05:29 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:05:30 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:05:30 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:05:47 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:05:47 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:08:31 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:08:31 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:08:32 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:08:32 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:08:55 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:08:55 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:08:56 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:08:56 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:09:14 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:09:40 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:10:01 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:10:11 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:10:44 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:11:12 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:11:36 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:11:36 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:12:20 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:12:38 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:12:44 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:13:46 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:14:16 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:14:20 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:14:20 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:14:43 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:14:47 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:14:47 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:14:59 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:15:15 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:15:25 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:17:29 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:17:43 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:17:53 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:18:08 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:18:12 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:18:27 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:18:30 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:18:30 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:18:31 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:18:31 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:19:02 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:19:05 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:19:17 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:20:03 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:20:13 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:20:17 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:20:17 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:20:27 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:20:45 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:20:54 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:21:00 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:23:35 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:24:01 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:24:05 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:24:05 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:24:10 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:24:13 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:24:13 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:24:19 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:24:26 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:31:40 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
+2023-05-24 12:34:16 jdbc[3]: exception
+org.h2.jdbc.JdbcSQLNonTransientException: Keine Daten verfügbar
+No data is available [2000-214]
diff --git a/backend/pom.xml b/backend/pom.xml
index d195fb8..feb52bd 100644
--- a/backend/pom.xml
+++ b/backend/pom.xml
@@ -27,6 +27,12 @@
             <artifactId>spring-boot-starter-test</artifactId>
             <scope>test</scope>
         </dependency>
+
+        <dependency>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
+            <version>2.1.214</version>
+        </dependency>
     </dependencies>
 
     <build>
@@ -35,6 +41,27 @@
                 <groupId>org.springframework.boot</groupId>
                 <artifactId>spring-boot-maven-plugin</artifactId>
             </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-install-plugin</artifactId>
+                <version>2.5.2</version>
+                <executions>
+                    <execution>
+                        <phase>validate</phase>
+                        <goals>
+                            <goal>install-file</goal>
+                        </goals>
+                        <configuration>
+                            <groupId>com.example</groupId>
+                            <artifactId>example</artifactId>
+                            <version>1.0</version>
+                            <packaging>jar</packaging>
+                            <file>${basedir}/H2JDBCDriver/h2-2.1.214.jar</file>
+                            <generatePom>true</generatePom>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
         </plugins>
     </build>