Hi,
The only solution without using any third party extension is to duplicate all the menu items, categories and products (one set per language).
That way, when you switch the language, it switches the menu items and thus the categories (attached to the menu items with the "main category" setting of the menu items) and thus the products.
With a third party extension, there are two main solutions:
- you can use Falang, which is what we usually recommend as it's well integrated with HikaShop. But it requires a lot of resources compared to other solutions.
- you can use a content tag plugin :
extensions.joomla.org/extensions/extensi...ntent/easy-language/
extensions.joomla.org/extensions/extensi...t/multilanguages-ck/
That way, you have all the translations in the description separated by tags to tell the system which text to display for which language.