Fatal error: Uncaught Error: Class 'League\OAuth2\Server\Storage\AbstractStorage' not found in /home/rijschoolmk/xibo.rijschool-mk.be/lib/Storage/ApiClientStorage.php:30 Stack trace: #0 {main} thrown in /home/rijschoolmk/xibo.rijschool-mk.be/lib/Storage/ApiClientStorage.php on line 30