Deleting Empty Galleries

[CWVRV]

I just converted the original smf media gallery to SMF Gallery pro by updating to Avea, then using the conveter.

Now, tons of empty galleries appear and there's no way to delete them.  They had been previously deleted as they are no longer forum members.  Many haven't been for many years.

I don't know where these were resurrected from and there's no option to delete them as there was in smf media gallery or avea.

I read the post topic about this from 2014 and it said you have to know the member's id number.   They don't exist because they were removed from the forum. 

I have to get rid of these.  There's literally 100 pages of them!

[SMFHacks]

Under Admin -> Gallery Configuration -> Settings

Check "Show only user galleries for uploaders"