Fatal error: Uncaught Error: Class 'Twig_Extension' not found in /home/domains/sfct.org/docs/wp-content/plugins/all-in-one-event-calendar/lib/twig/ai1ec-extension.php:12
Stack trace:
#0 {main}
thrown in /home/domains/sfct.org/docs/wp-content/plugins/all-in-one-event-calendar/lib/twig/ai1ec-extension.php on line 12