[Mailman-Users] Traceback Error

[Dr. Scott S. Jones]

I am experiencing traceback errors, as outlined in the following from
/usr/local/mailman/logs/error: 

admin(17030): Traceback (most recent call last):
admin(17030):   File "/usr/local/mailman/scripts/driver", line 112, in
run_main
admin(17030):     main()
admin(17030):   File "/usr/local/mailman/Mailman/Cgi/admindb.py", line 165,
in main
admin(17030):     process_form(mlist, doc, cgidata)
admin(17030):   File "/usr/local/mailman/Mailman/Cgi/admindb.py", line 716,
in process_form
admin(17030):     forward, forwardaddr)
admin(17030):   File "/usr/local/mailman/Mailman/ListAdmin.py", line 167, in
HandleRequest
admin(17030):     forward, addr)
admin(17030):   File "/usr/local/mailman/Mailman/ListAdmin.py", line 254, in
__handlepost
admin(17030):     g(msg, 1)
admin(17030): AttributeError: Generator instance has no __call__ method
admin(17030): [----- Python Information -----


Please advise. 

Scott