[Mailman-Users] Unsure what to do with web page "Bug in Mailman version 2.1.20"

[Stephen J. Turnbull]

Teijo writes:

 > After updating from Ubuntu 12.04 to 14.04 (Apache 2.2 to 2.4), only page 
 > content I seem to get is "Bug in Mailman version 2.1.20".

Don't assume it's Mailman, although the fact that you're getting to a
bug page is a strong indication that it is Mailman.  The upgrade from
Apache 2.2 to 2.4 is likely to have whacked any custom configuration
you've done, especially of virtual hosts.  Check your Apache configs.