No longer getting notifications on any of my devices

Have a Doorbell 2 that is hardwired and working fine. Suddenly the other day I noticed I was not getting any notifications. Not on my Android phone, my wife's apple phone, not my Echo Show, nothing. I can see live video from the doorbell. And if someone presses the button, it rings and Alexa says someone is at the door. But the mailman opens the door and nothing. What is going on? I've removed the app from my phone, and reinstalled. But I don't think it's just my phone because all my devices are not getting notifications.