[NueveoBaseIE][NonkTube] No video formats found

[charon2019]

!!! NSFW !!!

Version

• I've verified and I assure that I'm running youtube-dl 2019.03.09

Before submitting an issue make sure you have:

• At least skimmed through the README, most notably the FAQ and BUGS sections
• Searched the bugtracker for similar issues including closed ones
• Checked that provided video/audio/playlist URLs (if any) are alive and playable in a browser

What is the purpose of your issue?

• Bug report (encountered problems with youtube-dl)
• Site support request (request for adding support for a new site)
• Feature request (request for a new functionality)
• Question
• Other

$ python __main__.py --verbose https://www.nonktube.com/video/61786
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'--verbose', u'https://www.nonktube.com/video/61786']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2019.03.09
[debug] Git HEAD: 6db03a2
[debug] Python version 2.7.12 (CPython) - Linux-4.15.0-041500-generic-x86_64-with-Ubuntu-16.04-xenial
[debug] exe versions: avconv 3.2.4-1yavdr0, avprobe 3.2.4-1yavdr0, ffmpeg 3.2.4-1yavdr0, ffprobe 3.2.4-1yavdr0, rtmpdump 2.4
[debug] Proxy map: {}
[NonkTube] 61786: Downloading XML
[NonkTube] 61786: Checking sd video format URL
[NonkTube] 61786: sd video format URL is invalid, skipping
ERROR: No video formats found!; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
Traceback (most recent call last):
  File "/home/mpw/gits/youtube-dl/youtube_dl/YoutubeDL.py", line 805, in extract_info
    return self.process_ie_result(ie_result, download, extra_info)
  File "/home/mpw/gits/youtube-dl/youtube_dl/YoutubeDL.py", line 859, in process_ie_result
    return self.process_video_result(ie_result, download=download)
  File "/home/mpw/gits/youtube-dl/youtube_dl/YoutubeDL.py", line 1521, in process_video_result
    raise ExtractorError('No video formats found!')
ExtractorError: No video formats found!; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.

I tried to look into this, but there is no trace of a big file (=video) in the developer mode. Any ideas where to start?