Hi,
You have two ways to do it:
- you have Falang, and you can go in the Components->Falang->Translations menu to translate your modules.
- You can create a copy of the module with a Slovak title and restrict each module to their corresponding language with the "language" option of the modules in the Joomla modules manager.
Regarding the translation of HikaShop products, I would recommend to use the Falang extension. Then, on each product, you'll have flags on which you can click for each language. That will open a popup where you'll be able to translate the text of your product in the corresponding language.
Otherwise, there are other ways to go about it, like content tag plugins. You can find more solutions here:
extensions.joomla.org/category/languages/multi-lingual-content/
If you want an automatic translation of your website pages, you can use other extensions:
extensions.joomla.org/category/languages...omatic-translations/
We use GSTranslate on our website for example.
In that case, you just make your whole website in one language and then let the system do the work for you. However, the translations are a lot less good than if you do then manually.