I’m sorry that you have this issue.
If you wish to have the wishlist feature, go to your WordPress admin area -> YITH Plugins -> Wishlist -> find ‘save changes’ on bottom of the page and click. Now wishlist features enabled on your site.
If you wish to remove the Wishlist feature, then add the below css code on appearance -> customize -> custom css
I’m working with new version, you can download it tomorrow. It will have an option to disable wishlist feature from customize panel.
Anyway if you need to solve it immediately, you can follow the steps.
open new-shop-pro/inc/newshop-woocommerce-functions.php file.
remove the below code on line 241. add_action( 'woocommerce_before_shop_loop_item_title', 'new_shop_pro_display_yith_wishlist_loop', 97 );
It will work. Please update me if it works for you.