Hello,
1. The Catalogue mode disables “Add To Cart” button and shopping cart, not products at all.
2.
.fancy-select ul.options, .fancy-select div.trigger {
color: black;
}
3. Make sure that you set correct settings for the plugin according to theme documentation –
https://xstore.helpscoutdocs.com/article/65-woocommerce-infinite-scroll-and-ajax-pagination-settings
Regards