error sending order to sendle

Order Error byadmin [orderid:206] :: Array ( [messages] => Array ( [sender] => Array ( [0] => Array ( [address] => Array ( [0] => Array ( [state_code] => Array ( [0] => can’t be blank ) [state_name] => Array ( [0] => Australia does not match any of our known states for your given country. ) ) ) ) ) ) [error] => unprocessable_entity [error_description] => The data you supplied is invalid. Error messages are in the messages section. Please fix those fields and try again. )