Unable to send logs to s3 using aws-elasticsearch-plugin - Help! about fluent-plugin-aws-elasticsearch-service HOT 3 CLOSED

<match *.**>
  @type copy
  <store>
    @type aws-elasticsearch-service
    logstash_format true
    logstash_prefix ${tag[0]}
    include_tag_key true
    tag_key "Application_name"
    flush_interval 5s

    <buffer>
      flush_at_shutdown true
      flush_mode immediate
      flush_thread_count 8
      flush_thread_interval 1
      flush_thread_burst_interval 1
      retry_forever true
      retry_type exponential_backoff
    </buffer>

    <endpoint>
            url https://vpc-xxxx.us-east-1.es.amazonaws.com
            region us-east-1
            access_key_id "xxxx"
            secret_access_key "xxxx"
    </endpoint>
  </store>
  <store>
    @type s3
    aws_key_id "xxxxx"
    aws_sec_key "xxxx"
    s3_bucket "logstream-testbucket"
    s3_region "us-east-1"
    path logs/
    buffer_path /var/log/td-agent/buffer/s3
    time_slice_format %Y-%m-%d/%H
    time_slice_wait 10m
  </store>
</match>