Setting dont make any effect

I have not effect at all when I set my Checkout page with your lugin (I use in another website that works perfectely). I read here that’s because of the “WooCommerce blocks’. I read that is necessary to:

“check after creating the checkout page using the shortcode [woocommerce_checkout] and verify whether the changes are being reflected?”

First, I didin’t creat any page, I just change the name, but is the page created by Woocommerce. Could you try to make me understand how to apply the recomendation above? My ability is under Junior. 🙂 🙁

Thanks for all your attention

The page I need help with: [log in to see the link]