For a correct functioning, once you enable the plugin, a “Wishlist” page is generated on WordPress: it includes the “[yith_wcwl_wishlist]” shortcode that provides the insertion of the table of all products added to the wishlist.
You can show the wishlist on any page of your site, different from the one selected by default, and you can choose it in the “Wishlist Page” field of the plugin settings dashboard.
Please note: the page you choose to use as the “wishlist” page must necessarily include the “[yith_wcwl_wishlist]” shortcode.
In case you had issues to display the “wishlist” page, regenerate the permalinks.