If you encounter duplicate field 'brand' error after activating our JSON-LD app embeds in your theme customizer, it indicates that your theme already contains JSON-LD code. To resolve this promptly, consider deactivating our Product JSON-LD app embed.
However, we strongly recommend removing any existing JSON-LD from your theme and use TinyIMG JSON-LD app embeds. TinyIMG JSON-LD implementation is usually better constructed which might lead to better google search results.