title: Stats command shows undefined data in embed
body: <p>I have a little problem with my <code>stats</code> command, even I make an embed properties are <code>undefined</code>.</p>
  
  <pre><code>if (command == "stats") {
    let mcount = bot.users.size;
    let scount = bot.guilds.size;
    let tcount = bot.channels.filter(c =&gt; c.type === 'text').size;
    let vcount = bot.channels.filter(c =&gt; c.type === 'voice').size;
    let embed = new Discord.RichEmbed()
      .setDescription(`:white_check_mark: Statistics of Tommy`)
      .setColor("2c2f33")
      .addField('**Users:**`' + `${mcount}` + '`')
      .addField('**Servers:**`' + `${scount}` + '`')
      .addField('**Text channels:**`' + `${tcount}` + '`')
      .addField('**Voice channels:**`' + `${vcount}` + '`');
    message.channel.send({
      embed
    });
  }
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/BQII2.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/BQII2.png" alt="enter image description here"></a></p>