Fatal error: Uncaught Error: Class "Tobyz\JsonApiServer\Serializer" not found in /home/sardosne/flarum.sardos.net/vendor/flarum/core/src/Api/Serializer.php:22 Stack trace: #0 {main} thrown in /home/sardosne/flarum.sardos.net/vendor/flarum/core/src/Api/Serializer.php on line 22