AccessDeniedUser: arn:aws:sts::701984500217:assumed-role/s3readonly-api-gateway/BackplaneAssumeRoleSession is not authorized to perform: s3:ListBucket on resource: "arn:aws:s3:::ats-webhost-sarithm" because no identity-based policy allows the s3:ListBucket actionQVJ25GBSEQT7SBQ2MsXRoN1ppf9BK4OCw27weNJ5w+jDeD+85dnMFMb6LYi1cRb3MABlZ5p85ejR+HoL3wndapYequTubTpUMgqOlUe0qne45VOO4Z2WOQl9Uok=