title: Discord.js music bot with queue doesn't work
body: <p>I am trying to make a music Discord Bot with a queue. Currently, the play command work and I can add music to the queue (displayed with my playlist command). The problem is when the first music ends, the bot completly stops and do not play the next song (it do not disconnect and looks like it's playing something).<br>
  I use Discord.js v12, ffmpeg-static and the Youtube API.</p>
  
  <pre><code>if (command === "play" || command === "p") {
  
      const args = message.content.split(" ");
      const searchString = args.slice(1).join(" ");
      if (!args[1]) {
        return message.channel.send('Il faut spécifier une URL !')
          .catch(console.error);
      }
      const url = args[1] ? args[1].replace(/&lt;(.+)&gt;/g, "$1") : "";
      const serverQueue = queue.get(message.guild.id);
      var voiceChannel = message.member.voice.channel;
      if (!voiceChannel) return message.channel.send("Tu dois être dans un salon vocal pour utiliser cette commande !");
      const permissions = voiceChannel.permissionsFor(message.client.user);
      if (!permissions.has("CONNECT")) {
        return message.channel.send("J'ai besoin de la permission **`CONNECT`** pour cette commande");
      }
      if (!permissions.has("SPEAK")) {
        return message.channel.send("J'ai besoin de la permission **`SPEAK`** pour parler");
      }
  
      if (url.match(/^https?:\/\/(www.youtube.com|youtube.com)\/playlist(.*)$/)) {
        const playlist = await youtube.getPlaylist(url);
        const videos = await playlist.getVideos();
        for (const video of Object.values(videos)) {
          const video2 = await youtube.getVideoByID(video.id); // eslint-disable-line no-await-in-loop
          await handleVideo(video2, message, voiceChannel, true); // eslint-disable-line no-await-in-loop
        }
        return message.channel.send(`:white_check_mark:  **|**  Playlist: **\`${playlist.title}\`** a été ajouté à la playlist !`);
      } else {
        try {
          var video = await youtube.getVideo(url);
        } catch (error) {
          try {
            var videos = await youtube.searchVideos(searchString, 10);
            let index = 0;
            // eslint-disable-next-line max-depth
            try {
  
            } catch (err) {
              console.error(err);
              return message.channel.send("Annulation de la commande...");
            }
            const videoIndex = parseInt(1);
            var video = await youtube.getVideoByID(videos[videoIndex - 1].id);
          } catch (err) {
            console.error(err);
            return message.channel.send("  **|**  Je n'obtiens aucun résultat :pensive:");
          }
        }
        return handleVideo(video, message, voiceChannel);
      }
  }
  
  
  async function handleVideo(video, message, voiceChannel, playlist = false) {
    const serverQueue = queue.get(message.guild.id);
    const song = {
      id: video.id,
      title: Util.escapeMarkdown(video.title),
      url: `https://www.youtube.com/watch?v=${video.id}`
    };
    console.log(song.url)
    if (!serverQueue) {
      const queueConstruct = {
        textChannel: message.channel,
        voiceChannel: voiceChannel,
        connection: null,
        songs: [],
        volume: 5,
        playing: true
      };
      queue.set(message.guild.id, queueConstruct);
  
      queueConstruct.songs.push(song);
  
      try {
        var connection = await voiceChannel.join();
        queueConstruct.connection = connection;
        play(message.guild, queueConstruct.songs[0]);
      } catch (error) {
        console.error(`Je ne peux pas rejoindre le salon vocal : ${error}`);
        queue.delete(message.guild.id);
        return message.channel.send(`Je ne peux pas rejoindre le salon vocal : **\`${error}\`**`);
      }
    } else {
      serverQueue.songs.push(song);
      if (playlist) return undefined;
      else return message.channel.send(`:white_check_mark:  **|** **\`${song.title}\`** a été ajouté à la playlist !`);
    }
    return undefined;
  }
  
  
  function play(guild, song) {
    const serverQueue = queue.get(guild.id);
  
    if (!song) {
      serverQueue.voiceChannel.leave();
      queue.delete(guild.id);
      return;
    }
  
    const dispatcher = serverQueue.connection.play(ytdl(song.url))
      .on("end", reason =&gt; {
        if (reason === "Stream is not generating quickly enough.") console.log("Musique terminée.");
        else console.log(reason);
        serverQueue.songs.shift();
        play(guild, serverQueue.songs[0]);
      })
      .on("error", error =&gt; console.error(error));
    dispatcher.setVolumeLogarithmic(serverQueue.volume / 5);
  
    serverQueue.textChannel.send(`  **|**  En cours de lecture : **\`${song.title}\`**`);
  };
  </code></pre>