Map editor error message

### Issue description Das Spiel konnte nicht initialisiert werden. Bitte senden Sie uns einen Bericht mit Details. Mafi.DependencyResolverException: Failed to instantiate Mafi.Unity.Vehicles.ExcavatorMbFactory. ---> Mafi.DependencyResolverException: Failed to instantiate 'Mafi.Unity.Vehicles.ExcavatorMbFactory'. ---> Mafi.DependencyResolverException: TargetInvocationException thrown by constructor of 'Mafi.Unity.Audio.EntityAudioManager'. ---> System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.NullReferenceException: Object reference not set to an instance of an object at Mafi.Unity.Audio.EntityAudioManager..ctor (Mafi.Unity.Audio.AudioDb audioDb, Mafi.Unity.Camera.CameraController cameraController, Mafi.Core.GameLoop.IGameLoopEvents gameLoopEvents) [0x00035] at (wrapper managed-to-native) System.Reflection.RuntimeConstructorInfo.InternalInvoke(System.Reflection.RuntimeConstructorInfo,object,object[],System.Exception&) at System.Reflection.RuntimeConstructorInfo.InternalInvoke (System.Object obj, System.Object[] parameters, System.Boolean wrapExceptions) [0x00005] --- End of inner exception stack trace --- at System.Reflection.RuntimeConstructorInfo.InternalInvoke (System.Object obj, System.Object[] parameters, System.Boolean wrapExceptions) [0x0001a] at System.Reflection.RuntimeConstructorInfo.DoInvoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00086] at System.Reflection.RuntimeConstructorInfo.Invoke (System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] at System.Reflection.ConstructorInfo.Invoke (System.Object[] parameters) [0x00000] at Mafi.DependencyResolver.instantiate (System.Type type, Mafi.Collections.Set`1[T] pendingResolves, System.Int32 recursionDepth, System.Object[] args) [0x00260] --- End of inner exception stack trace --- at Mafi.DependencyResolver.instantiate (System.Type type, Mafi.Collections.Set`1[T] pendingResolves, System.Int32 recursionDepth, System.Object[] args) [0x0028b] at Mafi.DependencyResolver.resolveDependency (System.Type dependencyType, System.Boolean throwOnError, Mafi.Collections.Set`1[T] pendingResolves, System.Int32 recursionDepth) [0x000da] at Mafi.DependencyResolver.instantiate (System.Type type, Mafi.Collections.Set`1[T] pendingResolves, System.Int32 recursionDepth, System.Object[] args) [0x0021a] --- End of inner exception stack trace --- at Mafi.DependencyResolver.instantiate (System.Type type, Mafi.Collections.Set`1[T] pendingResolves, System.Int32 recursionDepth, System.Object[] args) [0x0023b] at Mafi.DependencyResolver.EnsureResolved (System.Type implType, System.Type asType) [0x0008e] --- End of inner exception stack trace --- at Mafi.DependencyResolver.EnsureResolved (System.Type implType, System.Type asType) [0x000aa] at Mafi.DependencyResolver.InstantiateAllAndLock () [0x002e6] at Mafi.Core.Game.GameBuilder+<initializeGame>d__6.MoveNext () [0x00077] at Mafi.Core.Game.GameBuilder+<BuildNewGameTimeSliced>d__2.MoveNext () [0x003f5] at Mafi.Unity.MapEditor.MapEditorScene+<loadMap>d__16.MoveNext () [0x00103] at Mafi.Unity.MapEditor.MapEditorScene+<Initialize>d__12.MoveNext () [0x000cb] at Mafi.Unity.Main+<unloadAndStartNewScene>d__70.MoveNext () [0x000fc] at Mafi.Unity.Main.stepSceneInitialization () [0x000dc] ### Reproduction steps 1. open map editor 2. resize map 3. change map size 4. push the button resize map and restart editor ### Game version and build number v0.6.3a b333 ### Operating system Windows