Can't start any game.

[alex15964]

Describe the bug
A clear and concise description of what the bug is.
I could start game 3 days ago, but can't and showed the error (below) yesterday.
I have tried re-install but not work, need help, thank you.

Screenshots

Desktop (please complete the following information):

• OS: [e.g. iOS] Window11

The Log:
System.InvalidOperationException: 序列未包含項目
於 System.Linq.Enumerable.First[TSource](IEnumerable`1 source)
於 Octgn.Controls.PreGameLobby.Start(Boolean callStartGame)
於 System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
於 System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
於 System.Windows.Controls.Primitives.ButtonBase.OnClick()
於 System.Windows.Controls.Button.OnClick()
於 System.Windows.Controls.Primitives.ButtonBase.OnMouseLeftButtonUp(MouseButtonEventArgs e)
於 System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
於 System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
於 System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
於 System.Windows.UIElement.ReRaiseEventAs(DependencyObject sender, RoutedEventArgs args, RoutedEvent newEvent)
於 System.Windows.UIElement.OnMouseUpThunk(Object sender, MouseButtonEventArgs e)
於 System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
於 System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
於 System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
於 System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
於 System.Windows.UIElement.RaiseTrustedEvent(RoutedEventArgs args)
於 System.Windows.Input.InputManager.ProcessStagingArea()
於 System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
於 System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport)
於 System.Windows.Interop.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel)
於 System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
於 System.Windows.Interop.HwndSource.InputFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
於 MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
於 MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
於 System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
於 System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

Additional context
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