discord.js: dispatcher bug on Linux systems

Please describe the problem you are having in as much detail as possible:

so i when i try to call the playFile function to play a file the Dispatcher just immediately call the end event after the start also i get that error from the error event:

TypeError: Cannot read property 'key' of undefined
    at StreamDispatcher.createPacket
   (/root/node_modules/discord.js/src/client/voice/dispatcher/StreamDispatcher.js:154:97)
      at StreamDispatcher.sendBuffer 
  (/root/node_modules/discord.js/src/client/voice/dispatcher/StreamDispatcher.js:122:25)
      at StreamDispatcher.process 
  (/root/node_modules/discord.js/src/client/voice/dispatcher/StreamDispatcher.js:231:14)
      at Socket.stream.once 
  (/root/node_modules/discord.js/src/client/voice/dispatcher/StreamDispatcher.js:312:12)
      at Object.onceWrapper (events.js:293:19)
      at emitNone (events.js:86:13)
      at Socket.emit (events.js:188:7)
      at emitReadable_ (_stream_readable.js:434:10)
      at emitReadable (_stream_readable.js:428:7)
      at readableAddChunk (_stream_readable.js:189:13)

i think its a bug from D.js or how D.js handle ffmpeg on a linux based system because the same code run with no problems on my windows computer but on my Linux based VPS it dont work also here is a basic view how my code look and all vars are defined(checked all double times) so maybe you know more (also i tried it on Ubuntu server 16.04 also and got the same problem)

Include a reproducible code sample here, if possible:

            var voiceConnection = msg.guild.voiceConnection
            const dispatcher  = voiceConnection.playFile(`./audio_cache/xyz.mp3`, {"volume": 0.2})
            dispatcher.on('start', () => {
                    msg.channel.send(`**Start playing: ${title} Requested by** ${author}`)
                }
            )
            dispatcher.on('error', error => {
                console.log(error)
                }
            )
            dispatcher.on('end', () => {
                msg.channel.send(`**Finished playing:** ${title}`)
                }
            )

Further details:

• discord.js version: 11.1 Stable | 12.0 Master DEV

• node.js version: 7.10

• Operating system: Debian

• Priority this issue should have – please be realistic and elaborate if possible: not as important

• I have also tested the issue on latest master, commit hash: #1498