Well, my link in post #3 was dated in 2019. I looked around to see if there was any possibility that maybe the owner could have changed his program. That would obviously be a very good thing......The "Video Help" forum is the most updated info I can find about Potplayer.I just downloaded and installed the latest version of Potplayer from their website and no longer see the popups!
I know that other people's opinions on forms are not very accurate, but it is all I can find that is current to today
Edit: this form Video Help Forum place also provides downloads of older versions of Potplayer from 19-06 and earlier that are ad free