Fatal error: Uncaught Error: Class "League\OAuth2\Server\ResponseTypes\AbstractResponseType" not found in /home/vincent/http/concrete5/concrete/vendor/league/oauth2-server/src/ResponseTypes/BearerTokenResponse.php:18 Stack trace: #0 {main} thrown in /home/vincent/http/concrete5/concrete/vendor/league/oauth2-server/src/ResponseTypes/BearerTokenResponse.php on line 18