Problem description
The AccessKeyId value in the request is invalid.
Causes
The request includes a signature, but the AccessKeyId value is invalid — for example, it contains invalid characters.
Examples
A request signed using the Authorization header was rejected because the AccessKeyId field contains invalid characters.
Solutions
Make sure the AccessKeyId value in the Authorization header or the URL is valid.
For more information, see Include signatures in the Authorization header and Add signatures to URLs.
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