Problems with WooCommerce

Hi.

After updating, my webpages has serveral problems.

One being the translation-part, but I can understand, that this is fixed ? – and is on the new WooCommerce 2.1.1

Is this right ??

But the worst problem is this:

When going to the shoppingcart (under billing and shipment), this message appears:
(and then you can’t finalize the transaktion)

Fatal error: Call to undefined method WC_Shipping::get_available_shipping_methods() in /customers/3/9/1/birks-antik-og-genbrug.dk/httpd.www/wp-content/themes/mio/woocommerce/checkout/review-order.php on line 14

Can any one help me ? Please !

As long as this don’t works – I can’t recieve any orders.
– not good business ! 🙁

Here is a link: http://www.birks-antik-og-genbrug.dk/checkout/
– so you can see for you self.

https://wordpress.org/plugins/woocommerce/