Fatal error: Uncaught Error: Interface "Vonage\Voice\Endpoint\EndpointInterface" not found in /var/www/html/core/vendor/vonage/client-core/src/Voice/Endpoint/Phone.php:16 Stack trace: #0 {main} thrown in /var/www/html/core/vendor/vonage/client-core/src/Voice/Endpoint/Phone.php on line 16