Oracle Message ORA-09761 - pw_destroyPorts: server call pws_stop_instance failed.

ERRORpw_destroyPorts: server call pws_stop_instance failed.
CAUSEThe call pws_stop_instance to (Oracle helper) failed.
ACTIONMake sure the server is still active. Check the error code returned in sercerrno, and look for error messages in the server log file.