Comments not apearing on facebook

Have you checked to make sure Facebook’s SDK and Nameservers are declared in the frontend? You need to check your settings…

I have the same thing going on. No issues up until this evening. No changes have been made to the site. All posts just have the shortcode showing now: Site is http://www.milwaukeemag.com – FB comments enabled on all posts. FB App ID is set with FB Nameservers checked.

These are provided within the plugin homepage:
http://peadig.com/wordpress-plugins/facebook-comments/