I installed this nice extension. Followed your instructions too, allthough I had some experience with Fanpages. But I got stuck now, I get this message now: 403 - This page is not directly accessible. The page I try to embed is this: https://www.texelsontwerp.nl/to-new/portfolio-texels-ontwerp?sec_key=koekoek. That seems to work, it says perfectly that I can only view this page from Facebook.
When I set the menu-item to Public, only the article for fans is visible, even if I don't like the page. And thats what should work anyway, isn't it?
Hope you have a solution, if you need more info, please reply...