Ad that redirects page

I've been getting what I think is an advertisement on Jetpunk that occasionally shows up as 4 parallel rectangles loading and then a few seconds later it redirects my page to some dodgy site. It looks like malware and it randomly occurs. I've only encountered it using Jetpunk

Last time it happened was a few months ago, where I would get it every few quizzes I took, so I stopped playing jetpunk for a bit. It stopped happening so I figured it was fixed. It's started happening again and I'm not sure if it's an issue with one of the ads on the site or what

Unfortunately I'm not tech savvy enough to give that much more detail but if someone understands what's going on, how to fix it, or has encountered it themselves could you fill me in?