Fix access denied bug

src/FileManager.java

@@ -38,6 +38,7 @@ public class FileManager {
         o = objectStream.readObject();
         objectStream.close();
         fileStream.close();
+        System.out.println("done");
         return o;
     }
 

src/GameFrame.java

@@ -5,6 +5,9 @@ Runs the constructor in GamePanel class
 */ 
 import java.awt.*;
 import java.io.IOException;
+import java.nio.file.FileSystemException;
+import java.nio.file.Files;
+import java.nio.file.Path;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
@@ -25,16 +28,23 @@ public class GameFrame extends JFrame{
       main = new CameraPanel();
       main.setLayout(new CardLayout());
       try {
+        System.out.println("done2");
         game = (GamePanel)FileManager.readObjectFromFile("local/game_state.dat", Arrays.asList("Any"));
         game.gameFrame = main;
         game.isContinue = true;
         game.addUserInterface();
-        game.startThread();
       } catch (IOException | ClassNotFoundException | ClassCastException | SecurityException e) {
         System.out.println(e);
         game = new GamePanel(main); //run GamePanel constructor
-        game.startThread();
       }
+      // delete saves to prevent unexpected behaviour
+      try {
+        Files.deleteIfExists(Path.of("local/game_state.dat"));
+        Files.deleteIfExists(Path.of("local/temp_state.dat"));
+      } catch (FileSystemException e) {
+        System.out.println(e);
+      }
+      game.startThread();
       /*
       try {
         // read previously saved controls