Facebook has recently announced that they will start expiring access tokens after 60 days. These tokens are used for Cloud Preservation to crawl Facebook feeds that require user authorization. To ensure proper crawling of your Facebook feeds you will need to reauthorize Cloud Preservation every 60 days.
This can be done by going to the feed’s settings and selecting to either enter your Facebook credentials or emailing the user who originally authorized the feed.
After saving the changes you will either be directed to sign into Facebook or an email will be sent to the email address you entered.
As a feed owner you will be notified 5 days before tokens are scheduled to expire, and again the day they expire, if you have not already reauthorized.
While this is may be seen as a nuisance, we understand that Facebook is taking this step to improve user security and we will do our best ensure the process is as smooth as possible.