Facebook cannot be added as a source after changing permissions
When you add Facebook as a Source, Facebook asks if you want to grant EdgeRover™ access to your Facebook name and profile picture, email address, photos and videos.
The Facebook log in page has an Edit Access link that allows you to disable access to your email address, photos and videos before continuing to connect Facebook to EdgeRover.
If you disable this access, EdgeRover will let you know that Facebook cannot be added as a Source. It will offer a link to retry. In this particular case, retrying will not work as the lack of permissions is already stored in Facebook.
To recover from this situation, in Facebook go to your account and look for the settings related to apps and websites. Find EdgeRover and remove it completely.
Return to EdgeRover and retry adding Facebook as a Source leaving access to email address, photos and videos enabled.