Fatal error: Uncaught Error: Class "Psy\Command\Command" not found in C:\WebServer\htdocs\bookshelf\vendor\psy\psysh\src\Command\TraceCommand.php:24 Stack trace: #0 {main} thrown in C:\WebServer\htdocs\bookshelf\vendor\psy\psysh\src\Command\TraceCommand.php on line 24