sambaPOS V5 cannot access a disposed object Hatası

V5 cannot access a disposed object Hatası Çözmeye çalısıyorum ama çıkmak mümkün olmadı

LOG HATAM

[Exception Info 1]

Top-level Exception

Type:        System.ObjectDisposedException

Message:     Cannot access a disposed object.

Source:      mscorlib

Stack Trace: at System.Threading.TimerQueueTimer.Change(UInt32 dueTime, UInt32 period)

   at System.Threading.Timer.Change(Int32 dueTime, Int32 period)

   at Samba.Presentation.ClientLibrary.Modules.TaskModule.Widgets.TaskEditor.TaskEditorViewModel.InternalRefresh() in C:\Users\vehbi\Source\Repos\sambapos-v5-pro\Samba.Presentation.ClientLibrary\Modules\TaskModule\Widgets\TaskEditor\TaskEditorViewModel.cs:line 735

   at System.Windows.Threading.Dispatcher.Invoke(Action callback, DispatcherPriority priority, CancellationToken cancellationToken, TimeSpan timeout)

   at System.Windows.Threading.Dispatcher.Invoke(Action callback)

   at Samba.Presentation.Common.Widgets.WidgetViewModel.<Refresh>b__86_0()

   at Samba.Services.Common.MethodQueues.MethodQueueItem.Execute() in C:\Users\vehbi\Source\Repos\sambapos-v5-pro\Samba.Services\Common\MethodQueues\MethodQueueItem.cs:line 35

   at Samba.Services.Common.MethodQueues.Methods.<>c.<ExecuteDelayedMethods>b__5_0(MethodQueueItem x) in C:\Users\vehbi\Source\Repos\sambapos-v5-pro\Samba.Services\Common\MethodQueues\Methods.cs:line 56

   at System.Collections.Generic.List`1.ForEach(Action`1 action)

   at Samba.Services.Common.MethodQueues.Methods.ExecuteDelayedMethods() in C:\Users\vehbi\Source\Repos\sambapos-v5-pro\Samba.Services\Common\MethodQueues\Methods.cs:line 56

   at Samba.Presentation.Services.Implementations.MethodQueue.RunQueue()

   at Samba.Presentation.Shell.TimerTick(Object sender, EventArgs e)

   at System.Windows.Threading.DispatcherTimer.FireTick(Object unused)

   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)

   at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)