You may have just bumped the "Manual" button next to the Direction Pad, please try clicking the "Auto" button to re-enable auto focus and zoom in / out to force the camera to force a refocus.
If this did not work please look at the lens of the camera to make sure someone has not left the lens cap on or has not left a smudgy finger print on the lens causing a blurry image.
If there is a smudge on the lens please follow the steps below to clean your lens and not damage anything:
Remove as much dust and dirt as possible from the lens with a blower or soft-bristled brush.
Apply a few drops of lens cleaning solution to a lens tissue or cleaning cloth.
Using a circular motion, gently remove oil, fingerprints, and grime from the lens surface, working from the center outward.
If these steps do not solve your problem please submit a ticket to our support team who will be more than happy to assist you further.