Discord.js V14中调用channel.send()时报Cannot read properties of undefined错误的排查求助

大家好，我现在在测试自己的Discord机器人功能，遇到了一个棘手的问题，想请各位大佬帮忙排查下。

我想要实现的功能是：当用户发送指令>send时，机器人会向指定的频道发送一条测试消息。我参考了Discord.js官方指南的写法写了代码，但运行时一直报错。

报错信息如下：

TypeError: Cannot read properties of undefined (reading 'send')

我已经反复核对过频道ID是正确的，但就是找不到问题所在。更奇怪的是，其他指令比如>test都能正常响应，唯独这个发送到指定频道的功能出问题。

以下是我的完整代码：

const {
  Events,
  EmbedBuilder,
  Client,
  GatewayIntentBits,
} = require('discord.js');

const greeting = [
  'yo wsp',
  'hi',
  'hello muthafucka',
  'stfu and talk with other people',
];

const lolo = greeting[Math.floor(Math.random() * greeting.length)];
const prefix = '>';

const client = new Client({
  intents: [
    GatewayIntentBits.Guilds,
    GatewayIntentBits.GuildMembers,
    GatewayIntentBits.GuildMessages,
    GatewayIntentBits.MessageContent,
  ],
});

const EmbedReply = {
  title: 'Do not ping this person.',
  description: ' 🙏 hes ded because of the pings already 🙏',
  color: '10038562',
  footer: {
    text: 'Current version: 0.0.1',
    icon_url:
      'https://cdn.discordapp.com/attachments/1141734104543539220/1141750630763987015/pooperson.jpg',
  },
};

module.exports = {
  name: Events.MessageCreate,
  once: false,
  execute(msg) {
    if (msg.content === '<@1140642830302335098>') {
      msg.reply(`${lolo}`);
    }
    if (msg.content === '<@1089518964360609792>') {
      msg.reply({ content: `<@${msg.author.id}>`, embeds: [EmbedReply] });
    }
    if (msg.content === prefix + 'test') {
      msg.reply('test succesful');
    }
    if (msg.content === prefix + 'send') {
      const channel = client.channels.cache.get('1137720568850956300');
      channel.send('test succes');
    }
  },
};

麻烦各位帮忙看看问题出在哪，谢谢大家了！

备注：内容来源于stack exchange，提问作者average discord bot maker