我一直在關注這個 discord.js 機器人教程系列，但我發現了一個我無法解決的錯誤。該命令在您給它一個 id 時有效，但是當您不給它任何東西時，它不會顯示錯誤行，它應該在控制臺中顯示給我一個錯誤。這是沒有一些不必要的行或有效行的代碼：const Discord = require("discord.js");const botconfig = require("../botconfig.json");const colours = require("../colours.json");module.exports.run = async (bot, message, args) => {     if(!message.member.hasPermission(["BAN_MEMBERS", "ADMINISTRATOR"])) return message.channel.send("...")    let bannedMember = await bot.users.fetch(args[0])       //I believe the error is somewhere in this line maybe because of the promise    if(!bannedMember) return message.channel.send("I need an ID")    let reason = args.slice(1).join(" ")    if(!reason) reason = "..."    try {        message.guild.members.unban(bannedMember, {reason: reason})        message.channel.send(`${bannedMember.tag} ha sido readmitido.`)    } catch(e) {        console.log(e.message)    }}這是錯誤：(node:19648) UnhandledPromiseRejectionWarning: DiscordAPIError: 404: Not Found    at RequestHandler.execute (C:\Users\Anton\Desktop\Bob\node_modules\discord.js\src\rest\RequestHandler.js:170:25)    at processTicksAndRejections (internal/process/task_queues.js:97:5)(node:19648) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)(node:19648) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.我不知道第一個錯誤有什么問題，對于第二個錯誤，我想我只需要檢查args[0]是id還是snowflake，但我不知道如何。