Fatal error: Uncaught Error: Class 'Nexmo\Client\Credentials\AbstractCredentials' not found in /var/www/html/scorecards/vendor/nexmo/client-core/src/Client/Credentials/OAuth.php:11 Stack trace: #0 {main} thrown in /var/www/html/scorecards/vendor/nexmo/client-core/src/Client/Credentials/OAuth.php on line 11