Pop up Ads

Hi, we shouldn't have popup ads. 

My gut instinct is that there may be some malware involved, but I'd like to learn more. Can you grab some images of what you're seeing, and send them to me in a DM?
I'm also curious what browser you're using, and if you see the same thing if you swap to a fresh one. 

It was a pop up for Plants Vs Zombies. Only seen it once, on Edge.