Discord.js 静音命令仅发送不正确命令的嵌入

So im making a mute command for my discord bot which finds if a "Muted" role exists and if it doesn't then the bot creates a "Muted" role and then gives that role to the mentioned member and currently when i run the command it only gives me the embed that its supposed to send if the command was written incorrectly.

const BaseCommand = require('../../utils/structures/BaseCommand');
const Discord = require('discord.js');

module.exports = class MuteCommand extends BaseCommand {
  constructor() {
    super('mute', 'moderation', []);
  }

  async run(client, message, args) {
    if(!message.member.hasPermission("MUTE_MEMBERS")) return message.channel.send("You do not have Permission to use this command.");
    if(!message.guild.me.hasPermission("MUTE_MEMBERS")) return message.channel.send("I do not have Permissions to mute members.");
    const Embedhelp = new Discord.MessageEmbed()
    .setTitle('Mute Command')
    .setColor('#6DCE75')
    .setDescription('Use this command to Mute a member so that they cannot chat in text channels nor speak in voice channels')
    .addFields(
      { name: '**Usage:**', value: '=mute (user) (time) (reason)'},
      { name: '**Example:**', value: '=mute @Michael stfu'},
      { name: '**Info**', value: 'You cannot mute yourself.
You cannot mute me.
You cannot mute members with a role higher than yours
You cannot mute members that have already been muted'}
   )
    .setFooter(client.user.tag, client.user.displayAvatarURL());

    let role = 'Muted'
    let muterole = message.guild.roles.cache.find(x => x.name === role);
    if (typeof muterole === undefined) {
      message.guild.roles.create({
        data: {
          name: 'muted',
          color: '#ff0000',
          permissions: {
              SEND_MESSAGES: false,
              ADD_REACTIONS: false,
              SPEAK: false
          }
        },
        reason: 'to mute people',
      })
      .catch(err => console.log(err).then(message.channel.send('Mute Role could not be created')))
    } 

    const mentionedMember = message.mentions.members.first() || await message.guild.members.fetch(args[0]);
    let reason = args.slice(1).join(" ");
    const banEmbed = new Discord.MessageEmbed()
     .setTitle('You have been Muted in '+message.guild.name)
     .setDescription('Reason for Mute: '+reason)
     .setColor('#6DCE75')
     .setTimestamp()
     .setFooter(client.user.tag, client.user.displayAvatarURL());

   if (!reason) reason = 'No reason provided';
   if (!args[0]) return message.channel.send(Embedhelp);
   if (!mentionedMember) return message.channel.send(Embedhelp);
   if (!mentionedMember.bannable) return message.channel.send(Embedhelp);
   if (mentionedMember.user.id == message.author.id) return message.channel.send(Embedhelp);
   if (muterole = undefined) return message.channel.send(Embedhelp);
   if (mentionedMember.user.id == client.user.id) return message.channel.send(Embedhelp);
   if (mentionedMember.roles.cache.has(muterole)) return message.channel.send(Embedhelp);
   if (message.member.roles.highest.position <= mentionedMember.roles.highest.position) return message.channel.send(Embedhelp);

   await mentionedMember.send(banEmbed).catch(err => console.log(err));
   await mentionedMember.roles.add(muterole).catch(err => console.log(err).then(message.channel.send('There was an error while muting the member')))

  } 
}

我仍然无法找出问题所在以及为什么会这样，我非常想知道我的代码中的错误以及是否还有其他我不知道的错误.

    let role = 'Muted'
    let muterole = message.guild.roles.cache.find(x => x.name === role);
    if (typeof muterole === undefined) {
      message.guild.roles.create({
        data: {
          name: 'muted',
          color: '#ff0000',
          permissions: {
              SEND_MESSAGES: false,
              ADD_REACTIONS: false,
              SPEAK: false
          }
        },
        reason: 'to mute people',
      })
      .catch(err => console.log(err).then(message.channel.send('Mute Role could not be created')))
    } 

if (muterole = undefined) return message.channel.send(Embedhelp);

if (muterole === undefined) {
    message.guild.roles.create({
        data: {
            name: 'muted',
            color: '#ff0000',
            permissions: []
        },
        reason: 'to mute people',
    })
        .catch(err => console.log(err).then(message.channel.send('Mute Role could not be created')))
}