[Mailman-Users] Mailman stopped working on me :/

[Guess Who.....]

Hello everyone,
I'm not sure whats up.  My mailing list was working, but now it has 
stopped :/  Here are the details on my system:
FreeBSD 4.0-RELEASE FreeBSD 4.0-RELEASE #2: Fri Aug 18 08:22:31 GMT 2000
Running Sendmail and newest Mailman beta.
I've checked my error log, but the only thing there is:
Sep 01 05:00:01 2000 (16214) Delivery exception: 
Sep 01 05:00:01 2000 (16214) Traceback (innermost last):
  File "/usr/local/mailman/Mailman/Handlers/HandlerAPI.py", line 82, in 
do_pipeline
    func(mlist, msg, msgdata)
  File "/usr/local/mailman/Mailman/Handlers/SMTPDirect.py", line 68, in 
process
    mlist.Save()
  File "/usr/local/mailman/Mailman/MailList.py", line 833, in Save
    self.__lock.refresh()
  File "/usr/local/mailman/Mailman/LockFile.py", line 204, in refresh
    raise NotLockedError
NotLockedError:

There are no other errors that I can see.  When a message is sent to 
the list, there is no confirmation and it is not sent.  It appears to 
go into the bitbucket :/  Please let me know what I can do to further 
the debugging or any other info you need!  TIA,
Sabre