Very useful plugin, does exactly what it says

I have been using this plugin for two years, together with w3tc cache. It worked flawkessly until recently, when I reconfigured my WP to multisite. I got an issue that wp-slimstat stopped tracking data for subsites of my multisite. Frank – its developper – gave me immediately advice how to adapt the setting, so my install works as well as before the multisite setup.
Great plugin, great support. Thank you!