Recently, WooCommerce added a new “block-ified” layout for the cart and checkout pages for new installs.
The Shoptimizer demo site uses the original “shortcodes” approach – which personally, we think is better to revert to, as many third-party payment gateway plugins aren’t yet fully compatible with the blocks approach.
- Go to
Pages > All Pages
, and then locate and edit the Cart/Checkout page. - Open the List View and select the Cart or Checkout block.
- Select and delete the Cart or Checkout block.
- Add a new “Shortcode” block in its place.
- Type:
1[woocommerce_cart]
1[woocommerce_checkout] - Save your changes.
See also the official WooCommerce documentation on this topic (under “Reverting to shortcodes”).