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 actionX3ZSCH2M19WP8R6Geq5mtaGJzCg72+3TFX7FK3JqIYVmheLk3HGQdaEcXs8K4/l4ivAWdX/ZSzcSEF9woJe1OJB358g=