Fatal error: Uncaught Error: Interface "Symfony\Component\PropertyInfo\PropertyInfoExtractorInterface" not found in /srv/disk1/2895578/www/whittonphotographicclub.org.uk/concrete/vendor/symfony/property-info/PropertyInfoExtractor.php:21 Stack trace: #0 {main} thrown in /srv/disk1/2895578/www/whittonphotographicclub.org.uk/concrete/vendor/symfony/property-info/PropertyInfoExtractor.php on line 21