Hi,
If you look at the HTML of your page, you can see that you are missing the "price" meta tag where the "availibility" and "priceCurrency" meta tags are:
i.imgur.com/mHupAUd.png
But this "price" meta tag is in HikaShop by default.
So that means that you (or your template provider) have customized the product page layout based on an old version of HikaShop which doesn't have the necessary code modifications to add that tag.
The modifications explained on
www.hikashop.com/support/forum/product-c...a/324883.html#324332
are to modify the core files of HikaShop. As you found out, the modifications are already there, and that's normal since we've added them to HikaShop after this post. However, these modifications are not in the view overrides that you have in your template. And that's where they need to be added.
So normally, if you check the folder templates/YOUR_TEMPLATE/html/com_hikashop/product/ via FTP, you should find at least one file which indicates that the product view files have been customized.
If you rename that whole folder to something else, it will deactivate the overrides and after your clear your website cache (if you have any), you'll see the default look of the product page, but you will get the additional meta tag for "price".
What to do where to keep your customizations and get the proper meta tags ? I'm not sure. I don't know which view files have been customized or how they have been customized so I can't tell you for sure.
Me giving you the link to the other subject was for you to apply the modifications to your overrides, thinking that you had done them yourself and thus that you knew what to do. If these customizations have been done by your template provider, then you need to contact your template support so that they can fix the overrides and provide you with a new version of the template.
Now regarding the HikaShop social networks plugin, I do not agree with you.
Yes, it did not add any additional microdata tag, but that's not its role. Its role is to add opengraph meta tags in the header of the page. And if you check there, you can know see these tags:
i.imgur.com/IyjNOAD.png
And if you check your page with FaceBook check tool, you can see that the opengraph meta tags are now found:
i.imgur.com/aMqeUW0.png
And thanks to that, the tool doesn't complain anymore about the "link" field being missing.
So the plugin does its job.
So to conclude, once your view overrides have the proper modifications, it will remove the "id" and "price" errors and the FaceBook check tool should not give out any error anymore.