Fatal error: Uncaught Error: Interface 'Nexmo\Message\MessageInterface' not found in /home/lettrecvmotivati/public_html/famiscola/vendor/nexmo/client-core/src/Message/Message.php:20 Stack trace: #0 {main} thrown in /home/lettrecvmotivati/public_html/famiscola/vendor/nexmo/client-core/src/Message/Message.php on line 20