[Plugin: eShop] Widget links to page its on

For some reason my eshop cart widgets “edit cart” and “Checkout” links to the page its on. For example when i’m on the home page those buttons only link to the homage and not the page the cart and checkout are on. They used to work before and I’m using the cart on a couple of other sites on the same host i’m with and they work fine. I have looked at other posts on similar issues and tried the sot cookies fix and that fixed an issue i was having with the cart finalising a checkout but not this problem. Should I reinstall the plugin? That won’t screw up anything will it?

the site with the issues is: http://gordontayler.com.au

Thanks for any help.