NullReferenceException: Object reference not set to an instance of an object.
StackTrace:
   at Quicker.App.<>c__DisplayClass28_0.oKgy3COIV9R()
   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)