Fatal error: Uncaught Error: Call to a member function get_email_part() on null in /users/laufgruppe-lvb/www/wordpress/wp-content/plugins/eventon-rsvp/templates/digest_email.php:10 Stack trace: #0 {main} thrown in /users/laufgruppe-lvb/www/wordpress/wp-content/plugins/eventon-rsvp/templates/digest_email.php on line 10