The ad is working, BUT; on my comp it onl shows after refreshing that page (2 different browsers). So - the title does appear at the first time, but not the ad....
Ok, I think we figured it out. When we access the page directly (in Chrome) with developer tools open: AdPlugg loads, twttr attempts to load (and throws an error), and Google Maps throws a warning. When we access the page via your menu, none of these things happen.
We found the following post from the author of your theme:
https://qode.ticksy.com/ticket/488562
In the post, the author states that third party scripts won't load when you use the theme's Ajax Animation/Page Transition feature. He also provides instructions for how to disable the feature. I would recommend disabling that feature to see if that fixes it. If you really need the page transitions feature, please let us know and we may be able to come up with a custom solution for you.
Had this problem on Safari and Chrome. Did also try it on Firefox; same poblem. BUT if I go to the page directly (so the full URL) - there is not problem. It only occurs if I head from the mainpage via the menu to the page where the ad is! In all honesty - I have no idea how to fix those kind of JavaScript Errors => but will try to figure that out also! (the demo version is working though)