Anyone else getting pop up ads that bypass adblockers?

For the past month or so i've been getting adverts pop up in a new window when i'm browsing the site. I've tried accessing the site using different adblockers like adblock plus and ublock origin (and no, i'm don't have them both on at the same time) and yet pop up ads are still getting past them. I've even uninstalled and reinstalled and reset both of them altogether to see if that fixes the problem and no result, and also run a full virus scan to see if they're infected but they're not. Is anyone else having this problem? Any advice?