Variables Run time error

Hi Experts,

I have a query which asks for fiscal year and posting period at the start of query run. But when I run the query in Bex analyzer, it gives me this error all the time.

"Program error in class SAPMSSY1 method : UNCAUGHT_EXCEPTION

System error in Program CL_RSR_REQUEST and form TEXT_ELEMENTS_GET: VARIABLE"

Recently we upgrade BW3.0 to BW7

Front end Support pak i am using Bw700SP09P_901-10001615

Can someone give some outputs ,

Thanks in advance.