[Mailman-Users] Administrative requests for mailing list failing

[James Nightly]

I'm unable to approve, discard, or do anything on the administrative
requests for mailing list. Selecting any of the options for an email
that's held for approval (and clicking on Submit All Data) simply
refreshes the page and the emails and all admin requests are still on
the page. I'm not sure how to troubleshoot this, if its apache/exim4,
what log to check...