Fatal error: Uncaught Error: Class "Psy\Command\Command" not found in /opt/lampp/htdocs/msjchat/vendor/psy/psysh/src/Command/YoloCommand.php:23 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/msjchat/vendor/psy/psysh/src/Command/YoloCommand.php on line 23