Menu Cart – Link Probs

Dear everybody,

i got the same Prob like in this post
https://ww.wp.xz.cn/support/topic/menu-cart-link-problem?replies=18

But the solution didn’t work. Maybe I do something wrong or the trick is not working.
My Site pinstick.camdata.de
My version: 2.5.7

My way Plugins–> scroll to Menu Cart–> Edit –> and I enter code on the end of the side?

Thanks
Sven

https://ww.wp.xz.cn/plugins/wp-menu-cart/