Hallo Sathish.
We had the same problem even though we are on GRC V10.0 Release 702 an SP13.
For this personal object worklist we resolved the issue updating APPROVER backend role including the authorization object: CA_POWL with following values:
POWL_APPID=GRFN_INBOX;POWL_QUERY=01;POWL_CAT= ;POWL_LSEL= ;POWL_TABLE= ;POWL_RA_AL=
I hpoe this resolve the issue
Best regards,
Victor.