Fatal error: Uncaught Error: Interface "FOS\HttpCache\ProxyClient\ProxyClient" not found in /home/rankting/public_html/ALT/ranketing.de (contao)/vendor/friendsofsymfony/http-cache/src/ProxyClient/Invalidation/PurgeCapable.php:19 Stack trace: #0 {main} thrown in /home/rankting/public_html/ALT/ranketing.de (contao)/vendor/friendsofsymfony/http-cache/src/ProxyClient/Invalidation/PurgeCapable.php on line 19