Sometimes Facebook revokes access to the account due to security reasons so the connection with Revealbot is lost. You might see the pop-up error at the bottom of your page in Revealbot account: An issue occurred while analyzing your Facebook account. Please reconnect it to make sure it works properly.
Try re-authenticating your Facebook profile using this link: https://revealbot.com/auth/facebook?auth_type=reauthenticate
Note: if there are several FB profiles connected and you have already reconnected yours make sure the other users did the same - if you just disconnect a profile all rules associated with it will turn into drafts.