Hi @balajik515!
How many sensu-backend nodes are you trying to run within your cluster? Based on your configuration, it looks like you are trying to run a single standalone sensu-backend. If it’s the case, then you should simply comment all the store configuration section since you won’t need it. Otherwise, I’d recommend you to look at our clustering guide:
https://docs.sensu.io/sensu-go/5.0/guides/clustering/
Then, make sure to take a look at the backend logs, while restarting the sensu-backend process, with journalctl -u sensu-backend -f or tail -f /var/log/sensu/sensu-backend.log depending on your operating system and let us know if you seed anything relevant.
Thanks