Fatal error: Uncaught Error: Interface "Amp\Parallel\Sync\Channel" not found in /var/www/public/git/vendor/amphp/parallel/lib/Sync/ChannelledStream.php:17 Stack trace: #0 {main} thrown in /var/www/public/git/vendor/amphp/parallel/lib/Sync/ChannelledStream.php on line 17