Fail to setup metricbeat for kubernetes

hi everyone!!
I deploy metricbeat in my cluster kubernetes via yaml file in this document

metricbeat can connect to open distro elasticsearch but can not create index
I check the log in rancher and see that
Failed to connect to backoff(elasticsearch( Connection marked as failed because the onConnect callback failed: request checking for ILM availability failed: 500 Internal Server Error: {“error”:{“root_cause”:[{“type”:“security_exception”,“reason”:“Unexpected exception indices:admin/get”}]
Please help me this solution ! thanks so much

Apologies for the delay. Please download the latest version of Open Distro for Elasticsearch. In case you are still facing this issue, please raise a Github Issue.