Fatal error: Uncaught Error: Interface "Vonage\Entity\EntityInterface" not found in /home/demoweb/public_html/placementship-backend/vendor/nexmo/client-core/src/Message/MessageInterface.php:16 Stack trace: #0 {main} thrown in /home/demoweb/public_html/placementship-backend/vendor/nexmo/client-core/src/Message/MessageInterface.php on line 16