system
11
My two cents is you can go thru trying to check the certificates/etc https://forum.avast.com/index.php?topic=163294.0 or as I’ve seen on many posts the “plugin” gets borked. Any chance your upgrade was thru the GUI/UI ?..in other words now a clean un-reinstall ? A clean un-reinstall does not take very long and no one will argue it is better than an over the top update. To that regard, many times on many threads the re-install resets the plugin correctly.
You can click on the link in my signature for long explanation on un-reinstall but that is for the novice…just make sure to use the Avast Clear util after regular uninstall in Windows.
https://www.avast.com/en-gb/uninstall-utility
Hope that helps.