Virtualmin -> System Settings -> Features and Plugins
1) Disable any option but not AWstats. I unchecked Virus filtering.
2) Click on Save button.
You will get the following error message:
Failed to save enabled features : The plugin AWstats reporting cannot be used : The template AWstats configuration file /etc/awstats/awstats.model.conf does not exist.
As you can see you cannot change Featurs and Plugins without fixing this issue.
What do you suggest as fast solution before you fix it into the next update? Copying in /etc/awstats file awstats.conf.local to awstats.model.conf?