Fatal error: Uncaught Error: Interface "Symfony\Component\Serializer\SerializerInterface" not found in /home/creantis/840suite.creantis.dev/840suite01/vendor/symfony/serializer/Serializer.php:48 Stack trace: #0 {main} thrown in /home/creantis/840suite.creantis.dev/840suite01/vendor/symfony/serializer/Serializer.php on line 48