I have two ways of shipping: weight (by using this plugin) and free. Free shipping when the order amount exceeds € 50,00. But when an order is above € 50,00 the free shipping buttons appears, but together with the costs calculated by this plugin, so it is not free at all ;).
See this screenshot: http://storage7.static.itmages.com/i/14/0220/h_1392892415_2884513_bff7c5e19b.png
How can I solve this?