Could Not index event to ElasticSearch

curl -v -GET '206.189.196.214:9200/_cluster/stats'
*   Trying 206.189.196.214...
* TCP_NODELAY set
* Connected to 206.189.196.214 (206.189.196.214) port 9200 (#0)
> GET /_cluster/stats HTTP/1.1
> Host: 206.189.196.214:9200
> User-Agent: curl/7.58.0
> Accept: */*
>
< HTTP/1.1 200 OK
< content-type: application/json; charset=UTF-8
< content-length: 3409
<
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