Facebook help - adding fb:app_id

[ARTPhotos]

Facebook continues to mark my posts as "against community standards". I ran my website through Facebook for developers debugger, and continue to be told "The following required properties are missing: fb:app_id". 

Can someone please help on how I add this meta tag and where in order to make my page adhere to Facebook's community standards?

[Adam7]

I don't think that adding that will affect how Facebook categorizes your site; it would only be needed if you made an app on Facebook and wanted to integrate with it. You might want to contact Facebook and ask them why your posts are getting flagged. There should be a link to report your posts as false-positives.