Fatal error: Uncaught Error: Class "Symfony\Component\VarDumper\Cloner\VarCloner" not found in E:\xampp\htdocs\stms\vendor\psy\psysh\src\VarDumper\Cloner.php:22 Stack trace: #0 {main} thrown in E:\xampp\htdocs\stms\vendor\psy\psysh\src\VarDumper\Cloner.php on line 22