Problem description
The V2 signature is not enabled for Amazon S3-compatible operations.
Causes
You initiated a PostObject request that uses the Amazon S3-compatible V2 signature, but the Amazon S3-compatible V2 signature is unavailable.
Examples
You initiated a PostObject request that uses the Amazon S3-compatible V2 signature.
Solutions
Use the Amazon S3-compatible V4 signature to initiate a PostObject request.
For more information, see PostObject.