elasticsearch log error

var-log-error-montadores.log

[2014-04-25 21:17:17,339][WARN ][snapshots                ] [Cap 'N Hawk] failed to create snapshot [my_snapshot_repo:snapshot1]
org.elasticsearch.snapshots.SnapshotCreationException: [my_snapshot_repo:snapshot1] failed to create snapshot
        at org.elasticsearch.repositories.blobstore.BlobStoreRepository.initializeSnapshot(BlobStoreRepository.java:251)
        at org.elasticsearch.snapshots.SnapshotsService.beginSnapshot(SnapshotsService.java:266)
        at org.elasticsearch.snapshots.SnapshotsService.access$600(SnapshotsService.java:82)
        at org.elasticsearch.snapshots.SnapshotsService$1$1.run(SnapshotsService.java:192)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:744)
Caused by: java.io.IOException: Failed to get [snapshot-snapshot1]
        at org.elasticsearch.common.blobstore.support.BlobStores.syncWriteBlob(BlobStores.java:60)
        at org.elasticsearch.cloud.aws.blobstore.S3ImmutableBlobContainer.writeBlob(S3ImmutableBlobContainer.java:59)
        at org.elasticsearch.repositories.blobstore.BlobStoreRepository.initializeSnapshot(BlobStoreRepository.java:227)
        ... 6 more
Caused by: com.amazonaws.AmazonClientException: Unable to unmarshall error response (The declaration for the entity "ContentType" must end with '>'.). Response Code: 417, Response Text: Expectation Failed
        at com.amazonaws.http.AmazonHttpClient.handleErrorResponse(AmazonHttpClient.java:767)
        at com.amazonaws.http.AmazonHttpClient.executeHelper(AmazonHttpClient.java:417)
        at com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:229)
        at com.amazonaws.services.s3.AmazonS3Client.invoke(AmazonS3Client.java:3398)
        at com.amazonaws.services.s3.AmazonS3Client.putObject(AmazonS3Client.java:1377)
        at com.amazonaws.services.s3.AmazonS3Client.putObject(AmazonS3Client.java:1233)
        at org.elasticsearch.cloud.aws.blobstore.S3ImmutableBlobContainer$1.run(S3ImmutableBlobContainer.java:48)
        ... 3 more
Caused by: org.xml.sax.SAXParseExceptionpublicId: -//W3C//DTD HTML 4.01//EN; systemId: http://www.w3.org/TR/html4/strict.dtd; lineNumber: 81; columnNumber: 5; The declaration for the entity "ContentType" must end with '>'.
        at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:257)
        at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:347)
        at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:121)
        at com.amazonaws.util.XpathUtils.documentFrom(XpathUtils.java:64)
        at com.amazonaws.services.s3.internal.S3ErrorResponseHandler.handle(S3ErrorResponseHandler.java:63)
        at com.amazonaws.services.s3.internal.S3ErrorResponseHandler.handle(S3ErrorResponseHandler.java:38)
        at com.amazonaws.http.AmazonHttpClient.handleErrorResponse(AmazonHttpClient.java:747)
        ... 9 more