Error: Couldn't open config file "awstats.dns.conf", nor "awstats.conf", nor "dns" after searching in path "., /etc/awstats, /usr/local/etc/awstats, /etc, /etc/opt/awstats, dns": No such file or directory

- Did you use correct config parameter ?
Example: If your config file is awstats.mysite.conf, use -config=mysite - Did you create your config file 'awstats.dns.conf' ?
If not, you can run "awstats_configure.pl" from command line, or create it manually.

Check config file, permissions and AWStats documentation (in 'docs' directory).