I keep crashing.

I got this error
System.ArgumentException: Destination array was not long enough. Check destIndex and length, and the array’s lower bounds.
at System.Array.Copy(Array sourceArray, Int32 sourceIndex, Array destinationArray, Int32 destinationIndex, Int32 length, Boolean reliable)
at System.Collections.Generic.List1.ToArray() at SdlDotNet.Widgets.Label.Label_Paint(Object sender, EventArgs e) at SdlDotNet.Widgets.Widget.TriggerPaint() at SdlDotNet.Widgets.Widget.BlitToScreen(Surface destinationSurface, Rectangle sourceRectangle, Point location) at SdlDotNet.Widgets.Widget.BlitToScreen(Surface destinationSurface, Rectangle sourceRectangle) at SdlDotNet.Widgets.Widget.BlitToScreen(Surface destinationSurface) at SdlDotNet.Widgets.WidgetRenderer.UpdateWidget(Surface destinationBuffer, Widget widgetToUpdate, WidgetCollection childWidgets) at SdlDotNet.Widgets.ContainerWidget.UpdateWidget(Widget widget) at SdlDotNet.Widgets.ContainerWidget.CheckWidgets() at SdlDotNet.Widgets.ContainerWidget.BlitToScreen(Surface destinationSurface, Rectangle sourceRectangle, Point location) at SdlDotNet.Widgets.Widget.BlitToScreen(Surface destinationSurface, Rectangle sourceRectangle) at SdlDotNet.Widgets.Widget.BlitToScreen(Surface destinationSurface) at SdlDotNet.Widgets.WidgetRenderer.UpdateWidget(Surface destinationBuffer, Widget widgetToUpdate, WidgetCollection childWidgets) at SdlDotNet.Widgets.ContainerWidget.UpdateWidget(Widget widget) at SdlDotNet.Widgets.ContainerWidget.CheckWidgets() at SdlDotNet.Widgets.ContainerWidget.BlitToScreen(Surface destinationSurface, Rectangle sourceRectangle, Point location) at SdlDotNet.Widgets.Widget.BlitToScreen(Surface destinationSurface, Rectangle sourceRectangle) at SdlDotNet.Widgets.Widget.BlitToScreen(Surface destinationSurface) at  .BlitToScreen(Surface ) at SdlDotNet.Widgets.Screen.DrawWidgets(TickEventArgs e) at SdlDotNet.Widgets.WindowManager.DrawWindows(TickEventArgs e) at   .(Object , TickEventArgs ) at System.EventHandler1.Invoke(Object sender, TEventArgs e)
at SdlDotNet.Core.Events.OnTick(TickEventArgs e)
at SdlDotNet.Core.Events.ThreadTicker()
at SdlDotNet.Core.Events.Run()
at   .()
at   .()
at   .(String[] )
at   .(String[] )

Repair/reinstall.Net Framework 4.

Hey I’m having the same problem but I can’t reinstall or even install the NET framework 4 It won’t appear on my computer so does this mean I can’t play without crashing?