Since May 1st, 2018 Facebook requires all “Live” apps to be reviewed and approved for posting permissions like manage_pages, publish_pages. You are getting this error because your app is in “Live” mode and not yet reviewed and approved....
Please see this thread about error #1500: https://wordpress.org/support/topic/error-1500-the-url-you-supplied-is-invalid Quick summary: When you submit new link to Facebook, Facebook takes a look at this link and indexes it. When Facebook servers are overloaded they...
Your Facebook is already auto-posting to Twitter. When it sees the same tweet made by our plugin it fails with this error. You need to either unlink your Facebook from Twitter or disable Twitter auto-posting from our plugin. If you decide to unlink your Facebook from...
If you choose Link attachment type: Share a link to your blogpost then from Facebook’s point of view you are sharing the link. It means that your content MUST have one link. Just one and only one.If you got this error then your content has more then one link and...
Solution: This actually has nothing to do with the plugin. This is the setting of your page. Please go to your Facebook Page, click “Edit Page”->”Update Info”, click “Your settings” from the left menu -> Posting Preferences, check checkbox “Always comment and...
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