SQL Query failure in application involving GP

Hi,

In one of the WDJ applications I am using, there is creation of GP instance involved and within the callable object of GP, back end connectivity is obtained through RFC. This application is not working properly and when I took traces of the same, I could find out that all transactions are failing at a particular query which looks like this.

Backends|ggp|adhn5362-1527(Oracle DB)|SQL|Prepared|Query|Select* from "CAF_GP_USRHSH" WHERE "HASHVALUE"=?

I can see such queries wherever back end connectivity is involved. Has any one faced such error before? Is this due to some authorization issues?

Helpful answers will be appreciated.

Thanks,

Shifa