问错误:在建立连接之前WebSocket已关闭

EN

Unable to play a music: 
Error: WebSocket was closed before the connection was established

    try {
      var connection = await voiceChannel.join();
      if(guild.me.hasPermission("DEAFEN_MEMBERS")) guild.me.voice.setDeaf(true);
      queueContruct.connection = connection;
      play(message.guild, queueContruct.songs[0], message);
    } catch (err) {
      queue.delete(message.guild.id);
      errorMessage(message, "1058");
      console.error("Unable to play a music: ");
      return console.error(err);
    }

async function play(guild, song, message) {
  const serverQueue = queue.get(guild.id);

  if (!song) {
    if(serverQueue.voiceChannel){
      serverQueue.voiceChannel.leave();
    }
    else {
      guild.voice.channel.leave();
    }
    queue.delete(guild.id);
    return;
  }

  try {
    let player = await ytdl(song.url, {filter: 'audioonly', quality: 'highestaudio', highWaterMark: 1 << 25, opusEncoded: true, encoderArgs: ['-af', 'bass=g=0']});
    const dispatcher = serverQueue.connection.play(player, { type: 'opus', highWaterMark: 1, bitrate: 'auto', fec: true, volume: false })
      .on("finish", () => {
        serverQueue.songs.shift();
        play(guild, serverQueue.songs[0], message);
      })
      .on("error", error => {
        console.error(error);
      });

      dispatcher.setVolumeLogarithmic(serverQueue.volume / 5);
    } catch(err){
      errorMessage(message, "1060");
    }
}