Fatal error: Uncaught Error: Interface 'Symfony\Component\Validator\ObjectInitializerInterface' not found in /home/users/00/3c/21/home/www/vendor/kimai/user-bundle/Validator/Initializer.php:23 Stack trace: #0 {main} thrown in /home/users/00/3c/21/home/www/vendor/kimai/user-bundle/Validator/Initializer.php on line 23