The ‘Auction list’ is an oversight of all your auction products. If there aren’t any auction products, you can click on the button to start creating your first one.
Once there are auction products, you can find the complete list on this page. In the ‘status’ column you can see the current state of the product, like finished, started, not started etc.
Here you will find the ‘add new auction’ button once again, that will redirect you directly to the product edit page, to create a new auction product.