Fatal error: Uncaught Error: Class 'Twig_Node_Expression_Filter' not found in /home/sven/www/svenk.org/~koeppel/src/lib/Twig/Node/Expression/Filter/Default.php:21 Stack trace: #0 {main} thrown in /home/sven/www/svenk.org/~koeppel/src/lib/Twig/Node/Expression/Filter/Default.php on line 21