When I turn off “billing_city”, “billing_state” or another other address fiels, the custumer cannot buy again. Apear one message with address error. And I have let all fields on. Too much field, and my clients dont finalise the buy.
Sorry to hear about the inconvenience. Kindly, please share your Site WP-ADMIN Login details in the Private Content field so that we can check this concern on your Site and help you out accordingly.
I visited your site and successfully placed an order. Everything seems to be working well. However, I noticed that the billing city and billing state fields are disabled. https://ibb.co/sWx8Rm9