Fatal error: Uncaught Error: Class 'Twig_Filter' not found in /srv/drbd-web/home/chelix/public_html/wp-content/plugins/all-in-one-event-calendar/vendor/twig/Filter/Node.php on line 20

Error: Class 'Twig_Filter' not found in /srv/drbd-web/home/chelix/public_html/wp-content/plugins/all-in-one-event-calendar/vendor/twig/Filter/Node.php on line 20

Call Stack:
    0.0016     361272   1. {main}() /srv/drbd-web/home/chelix/public_html/wp-content/plugins/all-in-one-event-calendar/vendor/twig/Filter/Node.php:0