Viki has stopped working

[shivsah]

Checklist

• I'm reporting a broken site support
• I've verified that I'm running youtube-dl version 2019.08.02
• I've checked that all provided URLs are alive and playable in a browser
• I've checked that all URLs and arguments with special characters are properly quoted or escaped
• I've searched the bugtracker for similar issues including closed ones

Verbose log

([debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['-F', '--username', 'PRIVATE', '--password', 'PRIVATE', 'https://www.viki.com/videos/1154624v-1-of-something-episode-1', '--verbose']
[debug] Encodings: locale cp1252, fs utf-8, out utf-8, pref cp1252
[debug] youtube-dl version 2019.08.02
[debug] Python version 3.7.3 (CPython) - Windows-10-10.0.18362-SP0
[debug] exe versions: ffmpeg N-92330-gd6d407d2d7, ffprobe N-92330-gd6d407d2d7
[debug] Proxy map: {}
[viki] Logging in
[viki] 1154624v: Downloading video JSON
[viki] 1154624v: Downloading video streams JSON
ERROR: Unable to download JSON metadata: HTTP Error 400: Bad Request (caused by <HTTPError 400: 'Bad Request'>); 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.
File "c:\users\shivam\appdata\local\programs\python\python37\lib\site-packages\youtube_dl\extractor\common.py", line 627, in _request_webpage
return self._downloader.urlopen(url_or_request)
File "c:\users\shivam\appdata\local\programs\python\python37\lib\site-packages\youtube_dl\YoutubeDL.py", line 2227, in urlopen
return self._opener.open(req, timeout=self._socket_timeout)
File "c:\users\shivam\appdata\local\programs\python\python37\lib\urllib\request.py", line 531, in open
response = meth(req, response)
File "c:\users\shivam\appdata\local\programs\python\python37\lib\urllib\request.py", line 641, in http_response
'http', request, response, code, msg, hdrs)
File "c:\users\shivam\appdata\local\programs\python\python37\lib\urllib\request.py", line 569, in error
return self._call_chain(*args)
File "c:\users\shivam\appdata\local\programs\python\python37\lib\urllib\request.py", line 503, in _call_chain
result = func(*args)
File "c:\users\shivam\appdata\local\programs\python\python37\lib\urllib\request.py", line 649, in http_error_default
raise HTTPError(req.full_url, code, msg, hdrs, fp))

Description

Viki has stopped working with a JSON metadata error

[remitamine]

youtube-dl https://www.viki.com/videos/1154624v-1-of-something-episode-1
[viki] 1154624v: Downloading video JSON
[viki] 1154624v: Downloading video streams JSON
[download] Destination: 1% of Something - Episode 1-1154624v.mp4
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0  204M    0  225k    0     0  23066      0  2:34:35  0:00:10  2:34:25 32835