Trigger Function schedule error from CLI

I am working of a custom digital ocean function which i want to add a scheduler, to run at a custom time.

parameters: {}
environment: {}
packages:
    - name: sample
      shared: false
      environment: {}
      parameters: {}
      annotations: {}
      functions:
        - name: hello
          binary: false
          main: ""
          runtime: python:default
          web: true
          triggers:
          - name: trigger-hello
            sourceType: scheduler
            sourceDetails:
              cron: "* * * * *"
          webSecure: false
          parameters: {}
          environment: {}
          annotations: {}
          limits: {}

but i keep getting this error

Deployed functions ('doctl sls fn get <funcName> --url' for URL):
  - sample/hello
Failures:
Error: While deploying while deploying trigger 'trigger-hello': Request failed with status code 401