Fatal error: Uncaught Error: Interface "Chamilo\ThemeBundle\Model\NotificationInterface" not found in /home/capacita/public_html/aula.certificateperu.com/src/Chamilo/ThemeBundle/Model/NotificationModel.php:10 Stack trace: #0 {main} thrown in /home/capacita/public_html/aula.certificateperu.com/src/Chamilo/ThemeBundle/Model/NotificationModel.php on line 10