Fatal error: Uncaught Error: Interface 'Symfony\Component\Serializer\Normalizer\NormalizerInterface' not found in /var/www/legtux.org/users/weboconsulting/www/vendor/api-platform/core/src/Hydra/Serializer/ErrorNormalizer.php:29 Stack trace: #0 {main} thrown in /var/www/legtux.org/users/weboconsulting/www/vendor/api-platform/core/src/Hydra/Serializer/ErrorNormalizer.php on line 29