Fatal error: Uncaught Error: Class "Vonage\Client\Exception\Server" not found in /home/qrapp/public_html/vendor/vonage/client-core/src/Client/Exception/ThrottleException.php:7 Stack trace: #0 {main} thrown in /home/qrapp/public_html/vendor/vonage/client-core/src/Client/Exception/ThrottleException.php on line 7