Fatal error: Uncaught Error: Interface "Facebook\PersistentData\PersistentDataInterface" not found in /home/rankting/public_html/ALT/ranketing.de (contao)/vendor/facebook/graph-sdk/src/Facebook/PersistentData/FacebookMemoryPersistentDataHandler.php:31 Stack trace: #0 {main} thrown in /home/rankting/public_html/ALT/ranketing.de (contao)/vendor/facebook/graph-sdk/src/Facebook/PersistentData/FacebookMemoryPersistentDataHandler.php on line 31