Ring devices on MQTT not working

I have home assistant Green and have MQTT broker. It had all my Ring devices esp the motion sensor, contact sensors etc. working fine. But as of today, nothing is working on the MQTT. I have tried reconfiguring, rebooting HA but nothing works. I am a Noob here, so dont have much knowledge. Can someone help please.

It seems to be a general problem. I am in the same situation.