Fatal error: Interface 'Metadata\AdvancedMetadataFactoryInterface' not found in /mnt/www/source/artspan/vendor/jms/metadata/src/MetadataFactory.php on line 11

Fatal error: Interface 'Metadata\MetadataFactoryInterface' not found in /mnt/www/source/artspan/vendor/jms/metadata/src/AdvancedMetadataFactoryInterface.php on line 13