Fatal error: Uncaught Error: Interface "ProxyManager\Signature\ClassSignatureGeneratorInterface" not found in /srv/disk1/2895578/www/whittonphotographicclub.org.uk/concrete/vendor/friendsofphp/proxy-manager-lts/src/ProxyManager/Signature/ClassSignatureGenerator.php:14 Stack trace: #0 {main} thrown in /srv/disk1/2895578/www/whittonphotographicclub.org.uk/concrete/vendor/friendsofphp/proxy-manager-lts/src/ProxyManager/Signature/ClassSignatureGenerator.php on line 14