fb:admins or fb:app_id in Open Graph fields Problem

You shouldn't use the fb: in the tag, we'll automatically add that. In the defaults area, you should set it as:
app_id=xxxx

Not sure why it's going blank, but either way, the above line should fix it. In the upcoming 4.0 release, we'll be setting this value automatically, but yes, for now, you need to do it manually.

Hope that helps, but if not, let us know!

Where are you seeing that error? Never heard of that one.

Facebook will accept either app_id or admins. It's up to you how you want your posts to be moderated (either by admins of the application, or specific users). Only one is required. In our testing, there's no impact in leaving both off though, except you'll get that message in the Linter and you won't be able to moderate the comments.

Hope that helps!

If you get the error appearing in the Linter again, please send us a URL to the page so we can lint it and see if there's something specific we can look into further.

Not sure what it could be, but would love to avoid it in the future
Alex

Once enabled, some tags will take up to 48 hours to be recognized by Facebook.

For the administrators, if you're using 3.4.x, the app_id should already be included as an Open Graph tag which will notify Facebook that any administrators of your app are admins of that page too. If you want to specify specific admins though, you can do across the whole site by using the Open Graph tab, and in the big box for defaults, enter:
admins=xxxx,yyyy
Where xxxx and yyyy are the Facebook User IDs of the user's you want to be admins (you can find this in the User Map area if they're connected or on their FB profile page)

If you want different admins for different pages, we can help you to do that too, just let us know.

Hope that helps,
Alex

Malin,
Can you post, or private message us, the URL of the page with the issues? If we can see the HTML, we can usually diagnose issues like you're mentioning pretty quickly.

Thanks,
Alex