Fatal error: Uncaught Error: Class "Symfony\Component\Serializer\Normalizer\AbstractNormalizer" not found in /usr/home/nemamo/domains/geo.masjed.eu.org/public_html/vendor/symfony/serializer/Normalizer/JsonSerializableNormalizer.php:22
Stack trace:
#0 {main}
  thrown in /usr/home/nemamo/domains/geo.masjed.eu.org/public_html/vendor/symfony/serializer/Normalizer/JsonSerializableNormalizer.php on line 22