I use Zen Cart 1.3.9d with FEC 1.8.1.

I recently found the address issue with PayPal.

It seems FEC module passes the shipping address (especially international addresses) in invalid format to PayPal.

This is the error message I get from PayPal.
Unable to process payment. Please contact the merchant as the shipping address provided by the merchant is invalid, and the merchant has requested that your order must be shipped to that address.

Can you test and advise? Thanks.