In my WPML interface (setup page) I get 2 warning messages concerning GP:
Notice: Undefined property: stdClass::$container_class in /home/users/livekftp/live-cartooning.nl/wp-content/themes/generatepress/inc/structure/navigation.php on line 224
Notice: Undefined property: stdClass::$container_class in /home/users/livekftp/live-cartooning.nl/wp-content/themes/generatepress/inc/structure/navigation.php on line 224