Fixed crash on last level

project/main.py

@@ -105,7 +105,11 @@ class MainLoop:
 
     def player_success(self, level: Level):
         next_level = self.parsed_levels_manager.find_next_level(level)
-        self.select_level(next_level)
+        if next_level is not None:
+            self.select_level(next_level)
+        else:
+            print('WINNNNNN!!')
+            self.select_main_menu()
 
     def select_main_menu(self):
         self.set_game_state(self.GAME_STATE_MENU)