php – Blocking the facebook application in the web connection

Facebook has informed me that for violation of Facebook's platform policy 8.1, which says

Check that you have correctly integrated the login. The application should not be blocked during the testing process.

The connection is implemented with the PHP SDK and follows the example of the Facebook Developers documentation. At first glance, there is no lock when connecting (I have not programmed it). Has anyone had a similar problem? Touch for Facebook to unlock the application.