Elastic Search - SnapShot to Azure Blob Failing with StorageException

I have been using the Elastic Search Cluster for more than a year without any issue, I will be doing regular snapshot backup and deletion of old indices and kept the available disk space on the average for all nodes well below 65%.

Version of Cluster:
"version_id": 5060399,
"version": "5.6.3",

But suddently today i am getting the below error during snapshot

"reason": "IndexShardSnapshotFailedException[Failed to perform snapshot (index files)]; nested: IOException; nested: StorageException[The value for one of the HTTP headers is not in the correct format.

Kindly help me to resolve it

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