Did this (before you even posted) and the result in your browser is:
Error: User 'web1_xxxxxxxx' is not allowed to access statistics of this domain/config.
Setup ('/etc/awstats/awstats.www.anothersideatisp.tld.conf' file, web server or permissions) may be wrong.
Check config file, permissions and AWStats documentation (in 'docs' directory).
So, now it's awstats rejecting, but even so, you don't have access.