Fall Winter 2020 - Shop By look

You do not have a link list with a handle set to fall-winter-2020-shop-look, or you do and it's empty. Go ahead and create a link list called Fall Winter 2020 - Shop By look on your Navigation page and populate that link list with links that point to collections, to see collections listed here. Make sure the link list also has a handle set to fall-winter-2020-shop-look.