You’re welcome.

It isn’t actually still active, just replicating the report as you would have seen it first time round.

Actually scanning a file isn’t that much of an issue, in certain instances avast it may makes copy of the file in the avast sub folder and scan it there. It is a different ball game if it is trying to remove it from a protected area.

Without knowing the file name, its location and malware name given it is hard to speculate as to why you got the error. However, if that related to using the trying to re-apply the action then that is highly likely to fail as the action was taken and may no longer be there.