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 action1DNHG6HT4M2CM1BAGeRgY56L6ZEDZ/LYHscKpk3ek9wgc5rmwlS4FHzKt4Gp23ywcXQhZKcAJCYjg+NxNSu7ZgsoMs0HopqmlA6NU4Ndr5gMhcAr