Fatal error: Uncaught Error: Interface 'OAuth2\IOAuth2GrantCode' not found in /home/itscm/dev.its.cm/itsgateway/vendor/friendsofsymfony/oauth2-php/server/examples/pdo/lib/OAuth2StoragePdo.php:18 Stack trace: #0 {main} thrown in /home/itscm/dev.its.cm/itsgateway/vendor/friendsofsymfony/oauth2-php/server/examples/pdo/lib/OAuth2StoragePdo.php on line 18