Fatal error: Uncaught Error: Interface "React\EventLoop\TimerInterface" not found in /users/quirl/www/filemanager/spark/protected/vendor/react/event-loop/src/Timer/Timer.php:15 Stack trace: #0 {main} thrown in /users/quirl/www/filemanager/spark/protected/vendor/react/event-loop/src/Timer/Timer.php on line 15