Hello, @VDinev,
Your issue is resolved now, Please check back to your site after clearing the browser cache. I have just Disabled Ajax add to cart for simple and Variable products. See the image for better reference: https://postimg.cc/xNM11VHT
Watch the resulting video here: https://www.veed.io/view/993b2cbc-196f-4365-8c25-be33bc8666f7?sharingWidget=true
Regards 8Themes Team.