Fatal error: Uncaught Error: Interface "Nexmo\Client\Response\ResponseInterface" not found in /home/rpios/demo-stat.cymdev.com/vendor/nexmo/client/src/Client/Response/AbstractResponse.php:12 Stack trace: #0 {main} thrown in /home/rpios/demo-stat.cymdev.com/vendor/nexmo/client/src/Client/Response/AbstractResponse.php on line 12