Bug in Mailman version 2.1.1

We're sorry, we hit a bug!

If you would like to help us identify the problem, please email a copy of this page to the webmaster for this site with a description of what happened. Thanks!

Traceback:

Traceback (most recent call last):
  File "/var/lib/mailman/scripts/driver", line 87, in run_main
    main()
  File "/usr/lib/mailman/Mailman/Cgi/listinfo.py", line 51, in main
    listinfo_overview(_('No such list %(safelistname)s'))
  File "/usr/lib/mailman/Mailman/Cgi/listinfo.py", line 87, in listinfo_overview
    mlist = MailList.MailList(name, lock=0)
  File "/usr/lib/mailman/Mailman/MailList.py", line 101, in __init__
    self.Load()
  File "/usr/lib/mailman/Mailman/MailList.py", line 573, in Load
    dict, e = self.__load(file)
  File "/usr/lib/mailman/Mailman/MailList.py", line 546, in __load
    dict = loadfunc(fp)
UnpicklingError: invalid load key, ''.

Content-type: text/html

We're sorry, we hit a bug!

Mailman experienced a very low level failure and could not even generate a useful traceback for you. Please report this to the Mailman administrator at this site.