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 actionG7Q2JVB5M5WAWF80tGHX9mq8TTnnm1CKkFB3CMQ7xSb96Ozt2cC4+wDNtYKSeeSt3XFlPulYiTr7wydgpZ+Tf3wvFDi1qOGBFb3py6t8MZ3m5OMN