Yeah with the debug i see the following:
error [04:49:47.250] [null_pointer_exception] null :: {"path":"/.marvel-es-*/_field_stats","query":{"level":"indices","ignore_unavailable":true},"body":"{"fields":["timestamp"],"index_constraints":{"timestamp":{"max_value":{"gte":"2015-12-03T03:49:47.068Z"},"min_value":{"lte":"2015-12-03T04:49:47.068Z"}}}}","statusCode":500,"response":"{"error":{"root_cause":[{"type":"null_pointer_exception","reason":null}],"type":"null_pointer_exception","reason":null},"status":500}"}
at respond (/data/www/kibana/node_modules/elasticsearch/src/lib/transport.js:238:15)
at checkRespForFailure (/data/www/kibana/node_modules/elasticsearch/src/lib/transport.js:201:7)
at HttpConnector. (/data/www/kibana/node_modules/elasticsearch/src/lib/connectors/http.js:155:7)
at IncomingMessage.wrapper (/data/www/kibana/node_modules/lodash/index.js:3095:19)
at IncomingMessage.emit (events.js:129:20)
at _stream_readable.js:908:16
at process._tickDomainCallback (node.js:381:11)
I saw your other post about this 35491