This is the error message that I am getting after publishing posts:
Add Link to Facebook - Super Foods Salad: Get me: Facebook error: Error validating access token: Session has expired at unix time 1353112884. The current unix time is 1359415093. @ 2013-01-28T23:18:13+00:00
Also, even if the post does publish to Facebook, the error message remains. There are five error messages at the top of my dashboard.