Facebook recently updated their API's and created some conflict, which we have since fixed. You will not be required to update your Application in Facebook with the following URI information. Follow the steps below to fix your application.
Step # 1
Log into Facebook Developer account -› https://developers.facebook.com/apps
Select your application and click on the Facebook Login tab, which can be found on the left hand side.
Make sure the following URIs are inside the box in the Valid OAuth redirect URIs section.
- http://socialresponder.io/client/fb-callback.php ( THIS IS NEW ONE )
That is how you resolve the issues, now log back into SocialResponder and on some campaign you might need to click "Refresh Campaign Data"