let queue = {}; //at the start

if (message.content.startsWith(prefix + 'queue0)) {
  } else if (command === 'queue') {
      let index = "0"
        if (!serverQueue) return msg.channel.send(':x: there is nothing playing.');
        else {
               let Embed = new Discord.RichEmbed()
                   .setAuthor("MUSIC QUEUE", msg.author.avatarURL)
                   .setColor("RANDOM")
                 //  .setThumbnail(serverQueue.songs[0].get().Thumbnail)
                   .addField("current Song:", `**- [${serverQueue.songs[0].title}](${serverQueue.songs[0].url})**`)
                   .addField("next Song:", `**- [${serverQueue.songs[1].title}](${serverQueue.songs[1].url})**`)
                   .setDescription("**Queue:**\n"+serverQueue.songs.map(song => `**${++index})** **[${song.title}](${song.url})**`).join('\n'))
                   .setFooter(`${client.user.username}`, client.user.avatarURL)
                   .setTimestamp()
                  msg.channel.send(Embed);