Hello!
Thanks for your help.
I had already done the cleaning of the Browser in the tests, but I did it again.
I noticed here that the problem is intermittent depending on the products that are added or removed from the cart. Depending on the number and type of products, sometimes it gives an error and sometimes it doesn’t.
I really couldn’t find a pattern in the errors, so I’m sending you several prints of the tests I did here: