wish I could give it zero

Connect everything, then suddenly it breaks the site. No problem, clean up, roll back the backup. Redo the plugin, it won’t connect, giving me all the errors that make no sense (like “you can’t post under this page name” while page and everything else is properly working in facebook manager). I removed everything, connections and the plugin, and now even pixel won’t show up on the site even thought its properly installed, as it was before using this plugin. So overall a total disaster.