Fatal error: Uncaught Error: Interface "Symfony\Component\Serializer\Normalizer\NormalizerInterface" not found in /var/www/crm_killing_ninja/vendor/api-platform/core/src/OpenApi/Serializer/LegacyOpenApiNormalizer.php:18 Stack trace: #0 {main} thrown in /var/www/crm_killing_ninja/vendor/api-platform/core/src/OpenApi/Serializer/LegacyOpenApiNormalizer.php on line 18