on load: if folder "plugins/xDuels/" doesn't exists: create folder "plugins/xDuels/" if file "plugins/xDuels/config.yml" doesn't exists: create file "plugins/xDuels/config.yml" if file "plugins/xDuels/messages.yml" doesn't exists: create file "plugins/xDuels/messages.yml" if file "plugins/xDuels/kits.yml" doesn't exists: create file "plugins/xDuels/kits.yml" if file "plugins/xDuels/arenas.yml" doesn't exists: create file "plugins/xDuels/arenas.yml"