I just though the forums was down for maintenance, etc. and it redirected to the asw.cz forum, I also couldn't even logon as my user name and password weren't recognised in the other forum.
When I was eventually able to get in to the forums.avast.com, site the Home Page Title had changed.
<title>Diskusní fóra ALWIL Software - Index</title>
So I wonder if the asw.cz forum has an English title
I guess normal service will resume in due course.