Fatal error: Uncaught Error: Call to undefined function path_join() in /users/laufgruppe-lvb/www/wordpress/wp-content/plugins/eventon-bookings/eventon-bookings.php:70 Stack trace: #0 /users/laufgruppe-lvb/www/wordpress/wp-content/plugins/eventon-bookings/eventon-bookings.php(36): eventon_bo->super_init() #1 /users/laufgruppe-lvb/www/wordpress/wp-content/plugins/eventon-bookings/eventon-bookings.php(31): eventon_bo->__construct() #2 /users/laufgruppe-lvb/www/wordpress/wp-content/plugins/eventon-bookings/eventon-bookings.php(150): eventon_bo::instance() #3 /users/laufgruppe-lvb/www/wordpress/wp-content/plugins/eventon-bookings/eventon-bookings.php(152): EVOBO() #4 {main} thrown in /users/laufgruppe-lvb/www/wordpress/wp-content/plugins/eventon-bookings/eventon-bookings.php on line 70