If one side of your ornament is covered in blue, it means there is still a blue scratch-resistant layer attached to the ornament to protect the back of the items from being scraped, scratched during delivery.
The real printing has been protected under that cover. Simply peel it off and your ornament is good to use:
Otherwise, if the ornaments got other problems such as: scratches, wrong prints, not as described ..., don't hesitate to chat with us and send a picture. Our team are online 24/7 to make sure you receive the best assistance.