[Bug 1346468] [NEW] Bug in Mailman version 2.1.18-1

[Iva]

Public bug reported:

Tried to approve mails to the newsletter list and this message pops up:

Bug in Mailman version 2.1.18-1

We're sorry, we hit a bug!

Please inform the webmaster for this site of this problem. Printing of
traceback and other system information has been explicitly inhibited,
but the webmaster can find this information in the Mailman error logs.

I have no idea what to do.
We've recently moved our website to another server and cpanel.

** Affects: mailman
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1346468

Title:
  Bug in Mailman version 2.1.18-1

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