Could not extract html5player key

[lamualfa]

node app.js https://www.youtube.com/playlist?list=PLDi8Uh318NKI0r8e4iQ8rvudqr8VP0gDV -d download/

Output:

(node:5789) [DEP0025] DeprecationWarning: sys is deprecated. Use util instead.
https://www.youtube.com/playlist?list=PLDi8Uh318NKI0r8e4iQ8rvudqr8VP0gDV
stream1 download video download//01. Maher Zain - Ya Nabi Salam Alayka (International Version) Vocals Only - Official Music Video.flv
Could not extract html5player key: https://www.youtube.com/yts/jsbin/player_ias-vfly7X4ko/id_ID/base.js
events.js:174
      throw er; // Unhandled 'error' event
      ^

Error: Status code 403
    at ClientRequest.<anonymous> (/home/lod/Projects/nodejs/ytdl-playlist/node_modules/ytdl-core/lib/index.js:119:28)
    at ClientRequest.emit (events.js:198:13)
    at HTTPParser.parserOnIncomingClient [as onIncoming] (_http_client.js:556:21)
    at HTTPParser.parserOnHeadersComplete (_http_common.js:109:17)
    at TLSSocket.socketOnData (_http_client.js:442:20)
    at TLSSocket.emit (events.js:198:13)
    at addChunk (_stream_readable.js:288:12)
    at readableAddChunk (_stream_readable.js:269:11)
    at TLSSocket.Readable.push (_stream_readable.js:224:10)
    at TLSWrap.onStreamRead [as onread] (internal/stream_base_commons.js:94:17)
Emitted 'error' event at:
    at ClientRequest.<anonymous> (/home/lod/Projects/nodejs/ytdl-playlist/node_modules/ytdl-core/lib/index.js:119:14)
    at ClientRequest.emit (events.js:198:13)
    [... lines matching original stack trace ...]
    at TLSWrap.onStreamRead [as onread] (internal/stream_base_commons.js:94:17)