Attached is what I see. Any suggestions?
Perform a repair of avast.
If that doesn’t solve it, perform a clean installation of the latest avast version.
You don’t say what your Virus Definitions version was before you tried an update ?
You could try an avast Repair, as suggested, if that doesn’t resolve it try downloading the full VPS update and install that.
Full virus definitions update, https://www.avast.com/download-update - ensure you download the correct one for avast 12+ version, 153MB ish.
Save it to your hard disk and run it when complete.
Repairing didn’t fix it but uninstalling and reinstalling did! Thank you.