There are further bugs in the code that should be updated.
Find:
PHP Code:
$province_code_order = (in_array($order->billing['country']['iso_code_2'], array('CA', 'US')) ? zen_get_zone_code($order->billing['country']['id'], $order->billing['state'], '--') : '--');
Replace With:
PHP Code:
$province_code_order = (in_array($order->billing['country']['iso_code_2'], array('CA', 'US')) ? zen_get_zone_code($order->billing['country']['id'], $order->billing['zone_id'], $order->billing['state']) : '--');
Find:
PHP Code:
$province_code_ship = (in_array($order->delivery['country']['iso_code_2'], array('CA', 'US')) ? zen_get_zone_code($order->delivery['country']['id'], $order->delivery['state'], '--') : '--');
Replace With:
PHP Code:
$province_code_ship = (in_array($order->delivery['country']['iso_code_2'], array('CA', 'US')) ? zen_get_zone_code($order->delivery['country']['id'], $order->delivery['zone_id'], $order->delivery['state']) : '--');