We can no longer answer ring doorbell in our alexa echo show

Our ring doorbell 2 is perfectly working with our alexa echo show. But recently we noticed that we were not be able to answer the ring doorbell in our alexa echo show. I already tried the ff: - ring door bell works perfectly with our phone ring app - it’s working when the command came from alexa echo show to ring doorbell - amazon and ring app are already updated - i tried disabled, deleted and re-enabled ring in amazon alexa app. But still, still not working. Please help.