mailman ... access forbidden

I have a mailman server. I changed the name of the domain in apache, but some of the mailman pages continued showing the old domain.

The apache server is now in http://new.domain.com
and mailman works in http://new.domain.com/mailman
but the foot of the page of mailman pages show http://old.mailman.com and some actions (like discard messages) direct to the old.domain also.

I have run


tutatis:/usr/lib/mailman/bin # ./withlist -l -r fix_url ListToChange --urlhost=new.domain.com 
Importing fix_url...
Running fix_url.fix_url()...
Loading list ListToChange (locked)
Saving list
Finalizing
tutatis:/usr/lib/mailman/bin #

it seems to work, but then I tried to enter the list admin from the browser:
http://new.domain.com and get a 403 access forbidden

same error for http://old.domain.com (some list must still use the old domain).

So I guess that the comman I run broke something.

What can i look for?

best regards