Layered Navigation Widget don't have any options and doesn't show up

Hi,

I have Woocommerce 2.0.13 with Peddlar theme and problem with Layered Navigation Widget – I have used attributes to in my products so I want to filter by them.
Price filter works. And Layered Navigation Widget no. When I put it in sidebar it’s says “these widget doesn’t have any options” and then it doesn’t show up on front end.
My plugins are: http://www.woothemes.com/products/przelewy24-pl/
and WooThemes Updater

http://wordpress.org/plugins/woocommerce/