Description
Since recently when calculating shipping for Great Britain there is an error:
"U.S.P.S. Error occurred: -2147218043 - Unable to calculate international postage. No services available. Invalid Country Name."
It is happening because USPS has changed the name for Great Britain. Now it's called "United Kingdom (Great Britain and Northern Ireland)" and this change should be reflected in the integration script.
Solution
http://www.viart.com/downloads/usps.zip
Download the file above and extract 'usps_v4.php' and 'usps_functions.php' in the /shipping folder of your shop replacing existing files. Please do not forget to make a backup copy of the current files in case something goes wrong.