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.