[Mailman-Developers] MM3 errors when attempting to view messages held for moderation

see my error output from django:

http://pastebin.com/6LX76ya8

i suspect there's many messages held for moderation as I've been playing around with my testing, mailman-bundler setup for mm3 but now i cannot access the held for moderation list. any clues out there? Thanks.

• Fabian S.