I couldn't get this plugin to work. I added the ID of my Facebook page but I didn't know where to find the Facebook App ID, secret and token (was I supposed to create a Facebook app? The instructions of the plugin do not mention such a thing. Actually, there is no insctructions at all, and no FAQ). So I clicked the "Get facebook access token" button. It leads me to an error Facebook page: "An error has occured, please try again". Great.
Any help would be appreciated, thanks!