ORA-31631: privileges are required

admin

ORA-31631: privileges are required
Cause: The necessaryprivileges are not available for operations such as: restarting
a job on behalf of another owner, using a device as a member of the dump fileset,
or ommiting a directory object associated with any of the various output files.
Refer to any following error messages for additional information.
Action: Select a differentjob to restart, try a different operation, or contact a
database administrator to acquire the needed privileges.