error message is getting when customer going to checkout(This order can’t be shipped to the address you entered. Review your address to ensure that all fields have been entered correctly and try again.)
This order can’t be shipped to the address you entered. Review your address to ensure that all field
There could be many reasons, take a look at a list of possible issues as detailed in the attached post.
https://community.shopify.com/c/shopify-design/this-order-can-t-be-shipped-to-the-address-you-entered/td-p/1322627