Fatal error: Uncaught Error: Class 'Nexmo\Client\Exception\Exception' not found in /opt/lampp/htdocs/kuesioner/vendor/nexmo/client-core/src/Client/Exception/Request.php:13 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/kuesioner/vendor/nexmo/client-core/src/Client/Exception/Request.php on line 13