No commit point data in gateway

Hi,

2012-01-06_18:03:00.43166
org.elasticsearch.index.gateway.IndexShardGatewayRecoveryException:
[noticiaindex][0] No commit point data is available in gateway

Today i have 4 server with 6 shards with one replica. In all my server
i don't find the shard [noticiaindex][0] .

I'm really lost my data ?

If i really lost my data how can i back my cluster to green status ?

Thanks for some help.

--
Gustavo Maia