Fatal error: Uncaught Error: Class 'Symfony\Component\Serializer\Normalizer\AbstractObjectNormalizer' not found in /home/pynchc/public_html/DEV/Old/concrete/vendor/symfony/serializer/Normalizer/ObjectNormalizer.php:26 Stack trace: #0 {main} thrown in /home/pynchc/public_html/DEV/Old/concrete/vendor/symfony/serializer/Normalizer/ObjectNormalizer.php on line 26