The problem is that after deleting a product on the order card, the customer back to the cart

Hello,

Thank you for reaching out to us.

1/ To assist you more effectively, we kindly request that you record a video demonstrating the issue and the steps leading to it. This will help us better understand and replicate the problem on our end.
Upload the video on a filesharing service, for example – https://fex.net/ , and provide us with the URL.

2/ Could you please test if the same issue occurs when using a default theme, such as Storefront? (Appearance > Themes).
If the behavior continues regardless of the theme being used, it suggests that the problem may not be related to the theme itself. In this case, we would recommend you contact support of woocommerce plugin – https://wordpress.org/support/plugin/woocommerce/

Warm Regards,
The 8Theme Team