Bounty - ASP Server error cant get first shell

Tried uploaded multiple versions of exploits found for Bounty and all of them after hitting upload return with "Server Error in ‘/’ Application.

Runtime Error

An application error occurred on the server.

same issue . have to reset and try it one more times

The ASPError object is used to display detailed information of any error that occurs in scripts in an ASP page. Note: The ASPError object is created when Server. GetLastError is called, so the error information can only be accessed by using the Server. GetLastError method.
Regards,
Rachel Gomez