Hi,
I have created products and completed all setup of eCommerce, and published the site live. However, when selecting different product variant the price does not change and then when you click the “add to cart” button the error message “Something went wrong when adding this item to the cart.” is displayed.
I have deleted both the Cart Object and “Add to Cart” Button and recreated them, at least twice with no joy.
I have lodged a support request with the support team, but thought the community might also have an answer.