Fatal error: Uncaught Error: Class "Vonage\Message\Message" not found in /home/digitalproduct/public_html/projectmanagementsoftware/vendor/vonage/client-core/src/Message/Vcal.php:21 Stack trace: #0 {main} thrown in /home/digitalproduct/public_html/projectmanagementsoftware/vendor/vonage/client-core/src/Message/Vcal.php on line 21