Fatal error: Uncaught Error: Call to undefined function tribe_classes() in /home/dennis91/public_html/wp-content/plugins/the-events-calendar/src/views/v2/month.php:31
Stack trace:
#0 {main}
thrown in /home/dennis91/public_html/wp-content/plugins/the-events-calendar/src/views/v2/month.php on line 31