Can't login and play

I click sign in and it gives me a critical error

Here is what the error gives me

System.Exception: Critical error @ btnLogin
at SdlDotNet.Widgets.Widget.TriggerClickEvent(MouseButtonEventArgs e)
at SdlDotNet.Widgets.Widget.OnMouseUp(MouseButtonEventArgs e)
at SdlDotNet.Widgets.Button.OnMouseUp(MouseButtonEventArgs e)
at SdlDotNet.Widgets.ContainerWidget.OnMouseUp(MouseButtonEventArgs e)
at SdlDotNet.Widgets.Window.OnMouseUp(MouseButtonEventArgs e)
at SdlDotNet.Widgets.WindowManager.HandleMouseButtonUp(MouseButtonEventArgs e)
at ​‭‮‌‌​‭‫‭‌‪‍‭​‍‏‏‫‍‮‏‭‏​‎‮.​‌‮‮‫‫‍‏‏‎‎​‮‌‫‮‫‫‎‍‮​‌​‭​‫‮‮(Object , MouseButtonEventArgs )
at SdlDotNet.Core.Events.OnMouseButtonUp(MouseButtonEventArgs e)
at SdlDotNet.Core.Events.ProcessEvent(SDL_Event ev)
at SdlDotNet.Core.Events.Poll()
at SdlDotNet.Core.Events.ThreadTicker()
at SdlDotNet.Core.Events.Run()
at ‬‎‍‪‏‬‍​‏‍‭‭‪‎‌‎‪‪‎‏‭‏‍‪‏‮‮.‍‫‫‎‌‫‪‮‮‌‏​‬‌​‏‪‭‏‪‮‪‮()
at ‍‫‫‍‪‎‏‫‏​‫‫‌‭‬‬‏​‬‏‬‬‫‌‌‪‮.‭​‪‎‭‏​‌‫​‪‌‏​‬‫‌‏‍‍‫‫‍‮()
at ‍‫‫‍‪‎‏‫‏​‫‫‌‭‬‬‏​‬‏‬‬‫‌‌‪‮.​‎‌‮​‮‬​‏‮​‎‌‪​‌‍​​​‏‬​‭‎‬‬‮()
at ‍‫‫‍‪‎‏‫‏​‫‫‌‭‬‬‏​‬‏‬‬‫‌‌‪‮.‭‭‍‭‪‫‪‮‪‌‍‌‎​​‎‏​​‬‎‍‪‫‭‮‎‮(String )
at ‬​‬‌‭‌‫​‪​‎‎‏‭‬‭‪‌‭‬​‎‮‏‍‫‮.‬‏‭‪‫‮‬‪‮‮‬‎‭‬‮​‍‍‪‮‎‫‭‎‌‎‪‎‌‍‮(String )

What should I do?