mongoskin连接mongodb访问不到用户库

Question

mongoskin连接上了阿里的mongodb的数据库，但是查询的时候数据查询不到

连接代码
var db = mongoskin.db( 'mongodb://root:[e-mail]:3717,dds-2zebaf8b74b085542379-pub.mongodb.rds.aliyuncs.com:3717/admin?replicaSet=mgset-7977929/bobo', { safe: true });

集合关联

var collections = {
  config: db.collection('config'),
  players: db.collection('players'),
  tips: db.collection('tips'),
  tips2: db.collection('tips2'),
  records: db.collection('records'),
  users: db.collection('users'),
  ADs: db.collection('ads'),
  hardwares: db.collection('hardwares'),
  trainings: db.collection('trainings'),
  trainingStatus: db.collection('trainingStatus'),
  dayTrainings: db.collection('dayTrainings'),
  A1: db.collection('A1'),
  foreignConfig: db.collection('foreignConfig'),
  connectTestTime: db.collection('connectTestTime'),
  test: db.collection('test'),
}

数据查询

req.collections.test.find({}, function (error, config) {
        if (!error) {

            console.log('confsssssssssssssssssssssig', error)
        }
        console.log('testttt****', config)
    })
    console.log('****1')
    req.collections.config.findById('592fc0a37c3f2f4ac49808e9', function (error, config) {

        if (req.useragent.isAndroid) {

            for (var i = 0; i < config.toies.length; i++) {
                config.toies[i].requiredAppVersion = '1.0';
            }
        }

查询的结果都是null

阿里mongodb结构

用户库都访问不到，系统库能访问到

大佬们这是什么原因啊