Facebook Won’t Authorize

I have had this plugin setup for a long time and it started not working for Facebook Page and when I try to reauthorize it I get the following:

Can’t Load URL: The domain of this URL isn’t included in the app’s domains. To be able to load this URL, add all domains and subdomains of your app to the App Domains field in your app settings.

The domain of my site is listed on the App. What other domain do they want?