Cannot see my products in frontend

-- HikaShop version -- : 2.3.6
-- Joomla version -- : 3.4.8
-- PHP version -- : 5.5

I reinstalled Joomla on same database so I can see the products and all hika shop data into the database but cannot see the products into hika shop component. It shows all blank categories.

Hi,

On frontend or in backend ?

If on frontend, you can try to recreate the menus / modules based on the new informations.
On backend, could you try to use the "Check database" button in the toolbar on the configuration page and/or the "Rebuild" one in the category listing page ?

If you don't have such button, then you have to update your HikaShop version.