sidebar

Hi :) how do we disable the Storefront sidebar as you did here https://celebritystylezone.com/product-category/ariana-grande/

This might be something easy but my product page does not have a categories sidebar like the one I see in the demo. See beblow picture, the categories side bar on my website is empty and I have spent hours but still cannot figure it out. See the comparison, also how to show the sorting list...