Alias ​​product not translated to osmap

-- url of the page with the problem -- : www.lacasettabio.it
-- HikaShop version -- : 2.4.0
-- Joomla version -- : 3.4.1
-- PHP version -- : 5.4.33
-- Browser(s) name and version -- : Firefox 37.0.1

Hi.

With Nicolas , I solved a problem to the site lacasettabio.it the following website forum:
www.hikashop.com/forum/integrations/8763...or-sitemap-urls.html

However, it remains a problem.

The product even though it is in English , at the end of the url text is always in Italian , then the alias is always Italian.
For example:
www.lacasettabio.it/negozio-online/legum...tto/ceci-bio-vendita (this is url in Italian)
if I click on the English flag, the product is correctly translated , but the URL becomes
www.lacasettabio.it/en/online-shop/legum...tto/ceci-bio-vendita (url in English).

I'd like to give you noticed that i put english alias on the english translation page of the product. Despite of that the alias has been not translated.

The purpose of indexation on search engines , it not produce consistent output.

Thanks for the help,
Giovanni