Fatal error: Uncaught Error: Class "Symfony\Component\Validator\Constraint" not found in /home8/xmeta/xmt.xmeta.ro/kimai2/vendor/symfony/validator/Constraints/Unique.php:22 Stack trace: #0 {main} thrown in /home8/xmeta/xmt.xmeta.ro/kimai2/vendor/symfony/validator/Constraints/Unique.php on line 22