Fatal error: Uncaught Error: Interface "SimplePie\Cache\Base" not found in /home/pacs/vcg00/users/compgen.de/wordpress/wp-includes/class-wp-feed-cache-transient.php:17 Stack trace: #0 {main} thrown in /home/pacs/vcg00/users/compgen.de/wordpress/wp-includes/class-wp-feed-cache-transient.php on line 17