diff --git a/src/data/DownloadLevels.java b/src/data/DownloadLevels.java
index da55a73..eebbc45 100644
--- a/src/data/DownloadLevels.java
+++ b/src/data/DownloadLevels.java
@@ -91,8 +91,6 @@ public class DownloadLevels {
         	        }
         			area.append(" >> ERFOLGREICH \n");
         		}
-
-            	JOptionPane.showMessageDialog(null, "Alle " + ManageFiles.getMissinglevels().size() + " Level wurden erfolgreich heruntergeladen.", "Download abgeschlossen", JOptionPane.INFORMATION_MESSAGE);
             	main.dispose();
 
             		MainGUI gui = new MainGUI();
diff --git a/src/database/Sqlite.java b/src/database/Sqlite.java
index 88e0232..751591a 100644
--- a/src/database/Sqlite.java
+++ b/src/database/Sqlite.java
@@ -129,8 +129,8 @@ public class Sqlite {
                 + "    attempts INTEGER NOT NULL,\n"
                 + "    completed BOOLEAN NOT NULL,\n"
                 + "    locked BOOLEAN NOT NULL,\n" // Neue Spalte
-                + "    personalBest STRING,\n"
-                + "    levelLength String\n"
+                + "    personalBest STRING NOT NULL,\n"
+                + "    levelLength String NOT NULL\n"
                 + ");";
 
         try (Connection conn = DriverManager.getConnection(url);
@@ -394,7 +394,7 @@ status = LoadingStatus.getInstance(); // Holen der Singleton-Instanz
     }
 
     private void createNewColumn(String tablename, String columnName) {
-        String sql = "ALTER TABLE " + tablename + " ADD COLUMN " + columnName + " TEXT";
+        String sql = "ALTER TABLE " + tablename + " ADD COLUMN " + columnName + " TEXT NOT NULL";
         try (Connection conn = DriverManager.getConnection(url);
              Statement stmt = conn.createStatement()) {
             stmt.executeUpdate(sql);
@@ -403,6 +403,7 @@ status = LoadingStatus.getInstance(); // Holen der Singleton-Instanz
         }
     }
 
+
     public void moveDataToNewDatabase(String tablename) {
         // Neuen Tabellennamen für die Kopie
         String newTableName = tablename + "_new";
diff --git a/src/gui/LoadingStatus.java b/src/gui/LoadingStatus.java
index 08259a3..f3f91b0 100644
--- a/src/gui/LoadingStatus.java
+++ b/src/gui/LoadingStatus.java
@@ -23,6 +23,13 @@ public class LoadingStatus {
         initialize();
     }
     
+    public static synchronized LoadingStatus getInstance() {
+        if (instance == null) {
+            instance = new LoadingStatus();
+        }
+        return instance;
+    }
+    
     public void initialize() {
         main.setSize(400, 300);
         main.setLayout(null); 
@@ -53,13 +60,6 @@ public class LoadingStatus {
         main.setVisible(true);
     }
     
-    public static synchronized LoadingStatus getInstance() {
-        if (instance == null) {
-            instance = new LoadingStatus();
-        }
-        return instance;
-    }
-    
     public void update(String level, int barValue) {
         area.append(level + "\n");
         bar.setValue(barValue + 1);
diff --git a/src/gui/MainGUI.java b/src/gui/MainGUI.java
index 7197270..8c14a5d 100644
--- a/src/gui/MainGUI.java
+++ b/src/gui/MainGUI.java
@@ -3,7 +3,6 @@ package gui;
 import java.awt.Button;
 import java.awt.Color;
 import java.awt.Dimension;
-import java.awt.Font;
 import java.awt.GridLayout;
 import java.awt.Insets;
 import java.awt.Toolkit;
@@ -18,10 +17,6 @@ import java.awt.event.KeyListener;
 import java.awt.event.MouseEvent;
 import java.awt.event.MouseListener;
 import java.io.IOException;
-import java.net.HttpURLConnection;
-import java.net.MalformedURLException;
-import java.net.ProtocolException;
-import java.net.URL;
 
 import javax.swing.BorderFactory;
 import javax.swing.ImageIcon;
@@ -338,8 +333,10 @@ public class MainGUI {
 								
 								String levellength = data.getLevelLength().get(index);
 								
+								System.out.println("test:" + data.getLevelLength().get(index) + ".");
 								
-								if(data.getLevelLength().get(index).equals("N/A") || data.getLevelID().get(index) == null) {
+								
+								if(data.getLevelLength().get(index).equals("N/A") || data.getLevelLength().get(index) == null) {
 									levellength = api.getLevelLength(Integer.parseInt(data.getLevelID().get(index)));
 									data.modifyData(data.getLevelname().get(index), comp[index], Integer.parseInt(attempts.getText()), lockbool[index], data.getPbarr().get(index), levellength);
 									System.out.println("request");