Fatal error: Uncaught Error: Class "Symfony\Component\Serializer\Normalizer\AbstractNormalizer" not found in /home/commyho2/public_html/drupal11a.com1.myhost.id/ddvarbase10/vendor/symfony/serializer/Normalizer/AbstractObjectNormalizer.php:52 Stack trace: #0 {main} thrown in /home/commyho2/public_html/drupal11a.com1.myhost.id/ddvarbase10/vendor/symfony/serializer/Normalizer/AbstractObjectNormalizer.php on line 52