"message":"No living connections","node_env":"production"

The ECONNREFUSED is telling you that it can't connect to Elasticsearch. The http://0.0.0.0:9200/ tells you what it's trying to connect to.

You need to modify the config/kibana.yml and change the elasticsearch_url setting to point to your cluster. If you are running Elasticsearch on the same box, the correct value is http://localhost:9200.