Marvel shows empty dashboard and log error message

marvel shows empty dashboard
and the log file error message is below:

[2014-08-09 09:00:58,741][ERROR][marvel.agent.exporter ] [Super Stars] could not connect to any configured elasticsearch instances: [localhost:9200]
[2014-08-09 09:00:58,784][ERROR][marvel.agent.exporter ] [Super Stars] error connecting to [localhost:9200]
java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:579)
at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:432)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:527)
at sun.net.www.http.HttpClient.(HttpClient.java:211)
at sun.net.www.http.HttpClient.New(HttpClient.java:308)
at sun.net.www.http.HttpClient.New(HttpClient.java:326)
at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:996)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:932)
at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:850)
at org.elasticsearch.marvel.agent.exporter.ESExporter.openConnection(ESExporter.java:325)
at org.elasticsearch.marvel.agent.exporter.ESExporter.openConnection(ESExporter.java:295)
at org.elasticsearch.marvel.agent.exporter.ESExporter.checkAndUploadIndexTemplate(ESExporter.java:384)
at org.elasticsearch.marvel.agent.exporter.ESExporter.openExportingConnection(ESExporter.java:174)
at org.elasticsearch.marvel.agent.exporter.ESExporter.exportIndicesStats(ESExporter.java:144)
at org.elasticsearch.marvel.agent.AgentService$ExportingWorker.exportIndicesStats(AgentService.java:277)
at org.elasticsearch.marvel.agent.AgentService$ExportingWorker.run(AgentService.java:245)
at java.lang.Thread.run(Thread.java:744)

header plugin works fine
<nabble_img src="Selection_018.png" border="0"/>