How to Disable Schema Markup on Products

Site URL: https://wranovsky.com/products/traditional-crystal-chandeliers/ocean-crystal-chandelier

Hi, we have products on our website without prices but what this does is that in the search engines the products are displayed with additional information (as in the attachments) which translates to the product being "free" and "in stock".

The product is neither in stock nor for free, so did anyone find a way to disable this from displaying in the search engines?

Thanks a lot!