Fatal error: Uncaught Error: Interface 'Nexmo\Client\Credentials\CredentialsInterface' not found in C:\xampp\htdocs\com.arbokcorp.app\vendor\nexmo\client\src\Client\Credentials\AbstractCredentials.php:11 Stack trace: #0 {main} thrown in C:\xampp\htdocs\com.arbokcorp.app\vendor\nexmo\client\src\Client\Credentials\AbstractCredentials.php on line 11