NullReferenceException: Object reference not set to an instance of an object.
StackTrace:
   at Quicker.Infrastructure.ActiveWindow.ForegroundWindowHistory.eeb6czimfQq(Object sender, ForegroundWindowChangedEventArgs  )
   at Quicker.Modules.ActiveWindow.ForegroundWindowWatcher.Lo26lbjYinN(WindowInfo  , WindowInfo targetWindowInfo)
   at Quicker.Modules.ActiveWindow.ForegroundWindowWatcher.twd6lp3UWpX(HWND  )
   at Quicker.Modules.ActiveWindow.ForegroundWindowWatcher.DiN6lYUe1Y7()
   at Quicker.Modules.ActiveWindow.ForegroundWindowWatcher.h7I6ltDH2Ht(Object sender, EventArgs  )
   at DN6YJX6lclyR03hGw3Rn.YwUMVK6lwfNZ4Q8tBOif.HKL6lJX9AD9()
   at DN6YJX6lclyR03hGw3Rn.YwUMVK6lwfNZ4Q8tBOif.p5r6lL7pBxG()
   at DN6YJX6lclyR03hGw3Rn.YwUMVK6lwfNZ4Q8tBOif.<>c.R3bVxzu5cnW(Object s)
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
--- End of stack trace from previous location ---
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Threading.TimerQueue.FireNextTimers()
   at System.Threading.ThreadPoolWorkQueue.Dispatch()
   at System.Threading.PortableThreadPool.WorkerThread.WorkerThreadStart()
   at System.Threading.Thread.StartCallback()