Fatal error: Uncaught Error: Interface "Nexmo\Client\Credentials\CredentialsInterface" not found in /home/trombino/public_html/africa.trombino.org/vendor_new/nexmo/client/src/Client/Credentials/AbstractCredentials.php:11 Stack trace: #0 {main} thrown in /home/trombino/public_html/africa.trombino.org/vendor_new/nexmo/client/src/Client/Credentials/AbstractCredentials.php on line 11