Fatal error: Uncaught Error: Class "Flarum\ExtensionManager\Command\AbstractActionCommand" not found in /home/sardosne/flarum.sardos.net/vendor/flarum/extension-manager/src/Command/CheckForUpdates.php:15 Stack trace: #0 {main} thrown in /home/sardosne/flarum.sardos.net/vendor/flarum/extension-manager/src/Command/CheckForUpdates.php on line 15