Metricbeat - INDEX LIFECYCLE ERROR

Hi

i have an indices which the ILM get an error.
Could you please help me here ?

"lifecycle": {
          "name": "metricbeat",
          "rollover_alias": "metricbeat"
        },

If more information is needed please tell me

Can you check to see if the alias metrictbeat is pointing to the correct location by using _cat/aliases in the Dev Tools Console?

If that is not set correctly, this is the documentation for the aliases API call.