Fatal error: Uncaught Error: Class "Symfony\Component\Validator\Constraint" not found in /home/ntpcbgtpp/public_html/mat1/vendor/symfony/validator/Constraints/ExpressionSyntax.php:23 Stack trace: #0 {main} thrown in /home/ntpcbgtpp/public_html/mat1/vendor/symfony/validator/Constraints/ExpressionSyntax.php on line 23