I get an error with UPLOAD SAMPLE FILE.

I would like to know how to solve the following error.

Error executing “PutObject” on “https://s3.us-west-002.backblazeb2.com/bucketname/_troubleshooter/sample.txt”; AWS HTTP error: Client error: PUT https://s3.us-west-002.backblazeb2.com/bucketname/_troubleshooter/sample.txt resulted in a 400 Bad Request response: InvalidArgument Unsupporte (truncated…) InvalidArgument (client): Unsupported value for canned acl ‘private’ – InvalidArgument Unsupported value for canned acl ‘private’