Fatal error: Uncaught Error: Interface "Amp\Parallel\Worker\WorkerPool" not found in /lamp/www/quantixTest/vendor/amphp/parallel/src/Worker/LimitedWorkerPool.php:5 Stack trace: #0 {main} thrown in /lamp/www/quantixTest/vendor/amphp/parallel/src/Worker/LimitedWorkerPool.php on line 5