Hi Steve
The error message indicates that your character is using content purchased from the Content Store or Marketplace that you need to have an export license for.
So if the error message doesn't indicate which item is at fault, check what you have added to your character that came from purchased content packs. This could be clothing, textures, accessories, hair etc. Once you locate which item of content needs an export license, you can purchase the upgrade from the Content Store or Marketplace or remove it from the character.
Peter
Forum Administrator
www.reallusion.com