RDLC Find button throwing Error 0x800a139e - JS rt error Ace

Question

0x800a139e - JavaScript runtime error: Sys.WebForms.PageRequestManagerServerErrorException: An unknown error occurred while processing the request on the server. The status code returned from the server was: 500

 

javascript runtime error  0x80070005 Access is denied

 

 

plz help me out  in finding the slution. greatly appriceated.