The manual shipping not showing

-- url of the page with the problem -- : celio-health.com/checkout/checkout
-- HikaShop version -- : 2.6.1
-- Joomla version -- : 3.4.5
-- PHP version -- : 5.5.9
-- Browser(s) name and version -- : Firefox

After upgrade to hikashop 2.6.1, the manual shipping is not show.
I have tried to rebuild the manual shipping method and still no use

Sorry!! I am egg head, I forget to config product's weight !!