Fatal error: Uncaught Error: Class "Symfony\Component\Validator\ConstraintValidator" not found in /home/zdpktgd/ptc/vendor.old/symfony/security-core/Validator/Constraints/UserPasswordValidator.php:23 Stack trace: #0 {main} thrown in /home/zdpktgd/ptc/vendor.old/symfony/security-core/Validator/Constraints/UserPasswordValidator.php on line 23