Stackstorm Chatops.notify Error MissingSchema

Hello, Trying to figure this error, that I get from the chatops.notify, action execute successful, but doesn’t get the msg in the slack channel.

    raise MissingSchema(error)
requests.exceptions.MissingSchema: Invalid URL 'None/v1/executions/5f6250b11ef92a273eb59ae3': No schema supplied. Perhaps you meant http://None/v1/executions/5f6250b11ef92a273eb59ae3?
",

In /opt/stackstorm/configs/config.yaml

---
ST2_BASE_URL: http://127.0.0.1
ST2_AUTH_URL: http://127.0.0.1:9100
ST2_API_URL: http://127.0.0.1:9101/v1
ST2_AUTH_TOKEN: ...

I have restarted st2ctl, still unable to see the msg in slack?