DavidR
4
As I don’t use the Avast Cleanup, my only suggestion I can offer is to post this in the Avast WEBforum » Avast Products » Avast Cleanup (former GrimeFighter) sub-forum, https://forum.avast.com/index.php?board=63.0, where it may attract some more knowledgable Avast Cleanup user.
You could also try browsing that sub-forum to see if anyone has already posted about this issue.