Fatal error: Uncaught Error: Call to undefined function path_join() in /users/laufgruppe-lvb/www/wordpress/wp-content/plugins/eventon-ticket-variations-options/eventon-ticket-variations-options.php:72 Stack trace: #0 /users/laufgruppe-lvb/www/wordpress/wp-content/plugins/eventon-ticket-variations-options/eventon-ticket-variations-options.php(38): evovo->super_init() #1 /users/laufgruppe-lvb/www/wordpress/wp-content/plugins/eventon-ticket-variations-options/eventon-ticket-variations-options.php(32): evovo->__construct() #2 /users/laufgruppe-lvb/www/wordpress/wp-content/plugins/eventon-ticket-variations-options/eventon-ticket-variations-options.php(148): evovo::instance() #3 /users/laufgruppe-lvb/www/wordpress/wp-content/plugins/eventon-ticket-variations-options/eventon-ticket-variations-options.php(152): EVOVO() #4 {main} thrown in /users/laufgruppe-lvb/www/wordpress/wp-content/plugins/eventon-ticket-variations-options/eventon-ticket-variations-options.php on line 72