Zybez is randomly redirecting me to dangerous sites... This is the third time this has happened in the past 3 weeks.

I go to the site, I go to the page of an item I'm trying to buy. I change tabs for 5 minutes or so. And then the tab starts flashing. I click on it to see what's going on, and it says that my antivirus has blocked a potential threat from gslbeacon.lijit.com having been redirected from my zybez page.

I block 100% of pop-ups so I know I didn't click anything. And my computer doesn't have a virus. It's only when I go on zybez, specifically after not looking at the page for several minutes.