Missing GNU mailing lists?

[tpeplt]

At the link http://www.gnu.org/software/emacs/documentation.html
is the text:

> For all other queries, consult the list of Emacs-related
> mailing lists on savannah.gnu.org and the complete list of GNU
> mailing lists on lists.gnu.org.

where the text ‘complete list of GNU mailing lists on
lists.gnu.org’ is a link to:

> http://lists.gnu.org/mailman/listinfo/

Following the link yields the following error message:

> Bug in Mailman version 2.1.29
>
> 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 or the web server logs.

Can someone tell me how to inform the GNU webmaster about this
problem?

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