Our site has been experiencing unusual technical difficulties that impacts several features of the site. Lessons have been restored and you can continue to watch them during this time. Unfortunately, backing tracks, notation & tablature, uploading videos and viewing Video Exchanges will continue to be unavailable. We are doing everything we can to restore full function to the site as quickly as possible. We regret the inconvenience and appreciate your patience while we resolve this issue.
Original Source: Update on Technical Issues