Fatal error: Uncaught Error: Interface 'Nexmo\Entity\JsonSerializableInterface' not found in /home/caistbuw/public_html/vendor/vonage/client-core/src/Call/Stream.php:22
Stack trace:
#0 {main}
thrown in /home/caistbuw/public_html/vendor/vonage/client-core/src/Call/Stream.php on line 22