Fatal error: Uncaught Error: Class "evo_cron" not found in /users/laufgruppe-lvb/www/wordpress/wp-content/plugins/eventon-ics-importer/includes/class-cron.php:6 Stack trace: #0 {main} thrown in /users/laufgruppe-lvb/www/wordpress/wp-content/plugins/eventon-ics-importer/includes/class-cron.php on line 6