PHP:
Fatal error: Uncaught Error: Interface "SimplePie_Cache_Base" not found in /www/habi.gna.ch/doc/wp-includes/SimplePie/Cache/Memcached.php:58 Stack trace: #0 {main} thrown in /www/habi.gna.ch/doc/wp-includes/SimplePie/Cache/Memcached.php on line 58