I reinstalled Bittorrent Sync on the phone and it works. Now there is a new problem. When I scan the QR Code I recieve "The QR code or key is invalid. Please us a valid QR code or key to link your devices. I have tried three other machines and I get the same error. I am not currently subscribed to the pro version. The tray icon shows I am running 2.0.105 but when I open Bittorrent Sync it shows 1.4.