Hello,
We are glad to know that you considered using WoodMart for your web-site. I hope you will be happy with it.
1. We see that you customized the wishlist page and its add to cart button. Could you please remove this customization and check how it will work without them?
2. Sorry, but maintaining of extra code customization done by you or your developers are out of our theme support scope.
3. WooCommerce doesn’t support WordPress shortcodes in this page. You need to edit your terms and conditions in Dashboard -> Pages and leave a plain text only there.
4. You can edit them in Dashboard -> YITH Plugins -> Wishlist.
Kind Regards
Xtemos