DSM API Error

{
    "data": {
        "has_fail": true,
        "result": [
            {
                "api": "SYNO.Core.Group",
                "data": {
                    "groups": [
                        {
                            "is_admin": false,
                            "name": "Public-VDSM Admins@jellykuo.com"
                        }
                    ]
                },
                "method": "admin_check",
                "success": true,
                "version": 1
            },
            {
                "api": "SYNO.Core.BandwidthControl",
                "error": {
                    "code": 5300,
                    "errors": {
                        "msg": "Invalid group name"
                    }
                },
                "method": "get",
                "success": false,
                "version": 2
            },
            {
                "api": "SYNO.Core.Quota",
                "error": {
                    "code": 5401
                },
                "method": "get",
                "success": false,
                "version": 1
            },
            {
                "api": "SYNO.Core.Storage.Volume",
                "data": {
                    "offset": 0,
                    "total": 1,
                    "volumes": [
                        {
                            "atime_checked": false,
                            "atime_opt": "relatime",
                            "container": "internal",
                            "crashed": false,
                            "deduped": false,
                            "description": "",
                            "display_name": "儲存空間 1",
                            "fs_type": "btrfs",
                            "is_encrypted": false,
                            "location": "internal",
                            "pool_path": "",
                            "raid_type": "basic",
                            "readonly": false,
                            "single_volume": true,
                            "size_free_byte": "434706264064",
                            "size_total_byte": "1055524831232",
                            "status": "normal",
                            "volume_attribute": "generic",
                            "volume_id": 1,
                            "volume_path": "/volume1",
                            "volume_quota_status": "v2",
                            "volume_quota_update_progress": -1
                        }
                    ]
                },
                "method": "list",
                "success": true,
                "version": 1
            }
        ]
    },
    "success": true
}