Hi

I think you do not understand my issue. I have completed the single product layout design as your video. I also preview the design in the layout successfully as your video. I could go to product page to view the correct design.
Product > All Products > View (see Step 0 and Product_page_under_new_layout)

I want to add some text into this SKU – 16469 product and then go to the Product page. This sku ID is linked with the new single product page design as your video.

See step 1.png – I go to edit the product with elementor. However, the error is shown as step 2.

I want you could help us to fix it.

Thanks