Most common causes for Facebook showing disconnected would be the account owner or someone with access changed the Facebook App Permissions, Removed the App from Facebook Business Integrations, or reset the Facebook password. 

If your curious about the disconnection, please reach out to all Facebook users with access. User can easily proceed to reconnect the account by selecting 'Facebook' within the list of accounts. Be sure all permissions are enabled and confirm which pages are mortgage related. 

Here is the step by step:

Mobile App User, click HERE

Web Users, click HERE