Fatal error: Uncaught Error: Class "Symfony\Component\Serializer\Normalizer\DateTimeNormalizer" not found in /home/dbdevweblamp/public_html/vendor/api-platform/core/src/Identifier/Normalizer/DateTimeIdentifierDenormalizer.php:20 Stack trace: #0 {main} thrown in /home/dbdevweblamp/public_html/vendor/api-platform/core/src/Identifier/Normalizer/DateTimeIdentifierDenormalizer.php on line 20