I'm sorry to see this happen to your looper, but only a technician at an authorized service center can diagnose and repair this issue. They can be found at http://line6.com/service_centers/. It has a one year warranty; you'd provide a copy of your receipt to the service center for warranty service.
If you have any questions moving forward, please know that Line 6 is no longer supplying support via the forums. Instead, you can create a support ticket at http://line6.com/support/...Contact Technical Support, and we will respond to you directly in the ticket.