Fatal error: Uncaught Error: Class "Symfony\Component\Serializer\Normalizer\AbstractObjectNormalizer" not found in /home/.sites/114/site713/web/energiepackung2024/vendor/symfony/serializer/Normalizer/PropertyNormalizer.php:39
Stack trace:
#0 {main}
  thrown in /home/.sites/114/site713/web/energiepackung2024/vendor/symfony/serializer/Normalizer/PropertyNormalizer.php on line 39