It's easy enough for you to Google up the details. The "issue" wasn't with the content but with their labeling -- they only included the California Prop 65 war

It's easy enough for you to Google up the details. The "issue" wasn't with the content but with their labeling -- they only included the California Prop 65 warning on their website, not on the product packaging (which they claimed was sufficient since the website was the only legitimate source of the product).