Fatal error: Uncaught Error: Interface "Illuminate\Console\Scheduling\EventMutex" not found in /opt/lampp/htdocs/forum/flarum/vendor/illuminate/console/Scheduling/CacheEventMutex.php:7 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/forum/flarum/vendor/illuminate/console/Scheduling/CacheEventMutex.php on line 7