Fatal error: Uncaught Error: Interface "Auth0\SDK\Contract\API\ClientInterface" not found in /var/www/staging.deals.1800os.com/vendor/auth0/auth0-php/src/Contract/API/AuthenticationInterface.php:11 Stack trace: #0 {main} thrown in /var/www/staging.deals.1800os.com/vendor/auth0/auth0-php/src/Contract/API/AuthenticationInterface.php on line 11