@TiltAgain As @pm-r found the issue was with their browser, and you are seeing the issue on all browsers, check to see if you have any browser extensions enabled. If so, try disabling all extensions to see if that resolves your issue. If it does, start adding them back again and test until you find the one that is causing the issue.
I do use Adblock Plus on my Windows system. If the only problem you are seeing is on one site, You can just disable ABP on a single site. Click on the ABP icon in the address bar and then click to allow ads on that one site, or one page.
And looking further down that window, it show you can block just specific elements on a page. I've never needed or tried this, but it might help if you pull up the ABP window when you see the above notification.