fix isn't working. keep getting this error. what does it mean
System.NullReferenceException: Object reference not set to an instance of an object.
at (GamesViewModelBase )
at BigBox.ViewModels.GamesViewModelBase.OnPageDown()
at (MainViewModel )
at BigBox.ViewModels.MainViewModel.OnPageDown()
at BigBox.ViewModels.MainViewModel.<>c__DisplayClass182_0.<HandleJoystickButtonHeld>b__0()
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)