Undownloadable video from tudou/youku (error -6001)

[PorscheMonty]

Hello there. I'm having trouble downloading a certain video from tudou/youku, but I cannot post the actual link because it's a private video (no usable title that would show up in a search but not technically set to private mode either) I've not been given explicit permission to share.

For what it's worth, the logs:

C:\youtube-dl>youtube-dl http://video.tudou.com/v/15RandomLetters==.html --no-check-certificate --verbose
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['http://video.tudou.com/v/15RandomLetters==.html', '--no-check-certificate', '--verbose']
[debug] Encodings: locale cp1252, fs mbcs, out cp437, pref cp1252
[debug] youtube-dl version 2017.10.29
[debug] Python version 3.4.4 - Windows-XP-5.1.2600-SP3
[debug] exe versions: none
[debug] Proxy map: {}
[youku] 15RandomLetters: Retrieving cna info
[youku] 15RandomLetters: Downloading JSON metadata
ERROR: Youku server reported error -6001: ccode????; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type youtube-dl -U to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
Traceback (most recent call last):
File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpk63cqkyt\build\youtube_dl\YoutubeDL.py", line 784, in extract_info
File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpk63cqkyt\build\youtube_dl\extractor\common.py", line 434, in extract
File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpk63cqkyt\build\youtube_dl\extractor\youku.py", line 189, in _real_extract
youtube_dl.utils.ExtractorError: Youku server reported error -6001: ccode????; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type youtube-dl -U to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.

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Thanks for your time and sorry for the inconveniences.

[dstftw]

You must provide reproducible example URL. There is no other way.