Mac OS Tahoe 26.3.1 Avast AntiTrack does not work

I have Avast Ultimate running on Mac OS Tahow 26.3.1 (a). AntiTrack does not work. The Avast app list says it is active but when I start AntiTrack the left side menu bar lists that app as DISABLED. I have followed past recommendation (reinstalled app, changed settings, etc.) but none of that works. What can I do?