Facebook posted an important update this month regarding Request 2.0. Effective since January 15th, the request ID format has changed, which changes how the Kontagent Facebook SDK must handle requests.  If you are using the Kontagent Facebook SDK, please update it to the latest version here:  https://github.com/kontagent/facebook-sdk 

For more information on this Facebook update see: http://developers.facebook.com/blog/post/625/

-The Kontagent Support Team