The variant of the clr.dll that you are utilizing may contrast the new form so it couldn't work. That implies that it's improbable that you need to establish identification with your concern. When all is said in done, it's hard to tell what the issue is in any case on the grounds that there's insufficient data accessible. It very well may be a runtime bug however it could likewise be a bug in your application. I recommend fixing clr.dll reestablish the record or perform framework reestablish.