Fatal error: Uncaught Error: Interface "Nexmo\Entity\JsonSerializableInterface" not found in /home2/hdodelko/oasisloungekh.com/vendor/vonage/client-core/src/Call/Talk.php:22 Stack trace: #0 {main} thrown in /home2/hdodelko/oasisloungekh.com/vendor/vonage/client-core/src/Call/Talk.php on line 22