Fatal error: Uncaught Error: Class 'Symfony\Component\CssSelector\Exception\ParseException' not found in D:\xampp\htdocs\psp\backend\vendor\symfony\css-selector\Exception\ExpressionErrorException.php:22 Stack trace: #0 {main} thrown in D:\xampp\htdocs\psp\backend\vendor\symfony\css-selector\Exception\ExpressionErrorException.php on line 22