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

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

Call Stack:
    0.0015     361216   1. {main}() /srv/drbd-web/home/chelix/public_html/wp-content/plugins/all-in-one-event-calendar/vendor/twig/Function.php:0