Fatal error: Uncaught Error: Class 'Psy\Shell' not found in /opt/lampp/htdocs/kuesioner/vendor/psy/psysh/test/FakeShell.php:16 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/kuesioner/vendor/psy/psysh/test/FakeShell.php on line 16