Hi,
While the link you gave to the debugger looks like a product page, when I click on it, I end up on a products listing.
Also, supposing that I go to a product page of your website ( like
www.brillbird.com.hr/shop/top-kategorije...vod/1566-exotic-east
), I don't see the like button for facebook.
Note that the share system of Facebook will only be able to get the proper product data if the "Display Facebook button" setting of the HikaShop Social plugin is activated. Otherwise, the Open Graph data in the header of the product page will be missing and it will have to guess the information of the product based on what is in the whole HTML of the page.