permission denied

//** Just follow the commands**// :-

Shutting down Mailman's master qrunner
No child with pid: 9522
[Errno 3] No such process
Stale pid file removed.
Processing user1
/bin/pwd: failed to stat `.': Permission denied
Processing user2
/bin/pwd: failed to stat `.': Permission denied
Processing user3
/bin/pwd: failed to stat `.': Permission denied
Processing user4
/bin/pwd: failed to stat `.': Permission denied
Processing user5
/bin/pwd: failed to stat `.': Permission denied



FIX
chmod +s /bin/pwd
/scripts/enablefileprotect