Fatal error: Uncaught Error: Class "Psy\Command\Config\AbstractConfigCommand" not found in /opt/lampp/htdocs/appproject/vendor/psy/psysh/src/Command/Config/ConfigGetCommand.php:21 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/appproject/vendor/psy/psysh/src/Command/Config/ConfigGetCommand.php on line 21