Fatal error: Uncaught Error: Interface "League\OAuth2\Server\AuthorizationValidators\AuthorizationValidatorInterface" not found in /srv/disk3/2724534/www/redgraveresearch.com/concrete/vendor/league/oauth2-server/src/AuthorizationValidators/BearerTokenValidator.php:27 Stack trace: #0 {main} thrown in /srv/disk3/2724534/www/redgraveresearch.com/concrete/vendor/league/oauth2-server/src/AuthorizationValidators/BearerTokenValidator.php on line 27