Ring Pro Issues

So I have a Ring Pro that has worked well for most of it's life (a little over a year). Now it won't ring the house doorbell (was before), and when you push it's button the outside tone get's chopped off, and the cirle light stops about a three quarters of the way through. Looking at the status of the device in the App. Power: Voltage Good Network: Signal Strength RSSI-55 Any suggestions? I've taken the cover off and "rebooted" the device (hold the side button down for 15 seconds), but still experiencing this issue.