Fatal error: Uncaught Error: Interface "Symfony\Component\PropertyInfo\PropertyListExtractorInterface" not found in /var/www/html/dev.hallescherfc.de/vendor/symfony/property-info/Extractor/SerializerExtractor.php:24 Stack trace: #0 {main} thrown in /var/www/html/dev.hallescherfc.de/vendor/symfony/property-info/Extractor/SerializerExtractor.php on line 24