作为一个基于日期将数据插入Firebase实时数据库的大型程序的一部分，我使用了以下函数，该函数在给定日期的情况下更新当天的数据。

/** Updates database for a single day
     * @param {string} day - A date string in the format 'YYYY-MM-DD'
     * @param {ApiManager} apiManager - An instance of ApiManager to fetch data
    */
    async updateSingle(day, apiManager) {
        idList.forEach(async id => {
            let reference = ref(this.db, `${day}/${id}`);
            let data = await apiManager.getDataApi(day, id, apiManager.season);
            console.log(data); // undefined
            set(reference, data);
        });
    }

每当这个函数运行时，它会给出下面的错误，我无法理解。我在几个月前写了这个程序，它运行得很好。当我几天前回到它，继续我的工作，这是我遇到的。

file:///c:/Users/xyz/node_modules/@firebase/database/dist/node-esm/index.node.esm.js:10636
        throw new Error(errorPrefix + 'contains undefined ' + validationPathToErrorString(path));
              ^

Error: set failed: value argument contains undefined in property '2023-02-23.848'
    at validateFirebaseData (file:///c:/Users/xyz/node_modules/@firebase/database/dist/node-esm/index.node.esm.js:10636:15)
    at validateFirebaseDataArg (file:///c:/Users/xyz/node_modules/@firebase/database/dist/node-esm/index.node.esm.js:10628:5)
    at set (file:///c:/Users/xyz/node_modules/@firebase/database/dist/node-esm/index.node.esm.js:12794:5)
    at file:///c:/Users/xyz/src/firebase_manager.js:30:13
    at processTicksAndRejections (node:internal/process/task_queues:96:5)

运行getDataApi()会返回一个JSON响应，这是一个足球比赛JSON对象列表，如下所示。

[
  {
    fixture: {
      id: 971801,
      referee: 'Istvan Kovacs, Romania',
      timezone: 'UTC',
      date: '2023-02-21T20:00:00+00:00',
      timestamp: 1677009600,
      periods: [Object],
      venue: [Object],
      status: [Object]
    },
    league: {
      id: 2,
      name: 'UEFA Champions League',
      country: 'World',
      logo: 'https://media-3.api-sports.io/football/leagues/2.png',
      flag: null,
      season: 2022,
      round: 'Round of 16'
    },
    teams: { home: [Object], away: [Object] },
    goals: { home: 2, away: 5 },
    score: {
      halftime: [Object],
      fulltime: [Object],
      extratime: [Object],
      penalty: [Object]
    }
  },
  {
    fixture: {
      id: 971803,
      referee: 'Artur Soares Dias, Portugal',
      timezone: 'UTC',
      date: '2023-02-21T20:00:00+00:00',
      timestamp: 1677009600,
      periods: [Object],
      venue: [Object],
      status: [Object]
    },
    league: {
      id: 2,
      name: 'UEFA Champions League',
      country: 'World',
      logo: 'https://media-3.api-sports.io/football/leagues/2.png',
      flag: null,
      season: 2022,
      round: 'Round of 16'
    },
    teams: { home: [Object], away: [Object] },
    goals: { home: 0, away: 2 },
    score: {
      halftime: [Object],
      fulltime: [Object],
      extratime: [Object],
      penalty: [Object]
    }
  }
]