This message is only visible to admins:
Unable to display Facebook posts

Error: (#10) This endpoint requires the 'manage_pages' permission or the 'Page Public Content Access' feature. Refer to https://developers.facebook.com/docs/apps/review/login-permissions#manage-pages and https://developers.facebook.com/docs/apps/review/feature#reference-PAGES_ACCESS for details.
Type: OAuthException
Code: 10
Click here to Troubleshoot.