Did you receive an error when loading the news feed saying that your Facebook token expired?
We can update the token in two easy steps.
1. Go to your account settings
Click on your name in the left nav bar, and choose 'Account'
2. Add an account
From the 'Linked Accounts' tab in your account settings, click 'Add Account'
3. Renew the access key
Choose the platform that is having issues, and follow the authentication steps as if you were adding the account for the first time.
Completing this will renew the access keys and should auto-reload the news feed.