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