yt-dlc [Broken] Viki

Checklist

[x] I'm reporting a broken site support
[x] I've verified that I'm running youtube-dlc version 2020.10.31
[x] I've checked that all provided URLs are alive and playable in a browser
[x] I've checked that all URLs and arguments with special characters are properly quoted or escaped
[x] 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', '-v', 'https://www.viki.com/videos/1143941v-the-fiery-priest-episode-1']
[debug] Loading archive file None
[debug] Encodings: locale cp1252, fs utf-8, out utf-8, pref cp1252
[debug] youtube-dlc version 2020.10.09
[debug] Python version 3.8.6 (CPython) - Windows-10-10.0.19041-SP0
[debug] exe versions: ffmpeg 4.2, ffprobe 4.2
[debug] Proxy map: {}
[viki] Logging in
ERROR: Unable to download JSON metadata: HTTP Error 403: Forbidden (caused by <HTTPError 403: 'Forbidden'>); please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type  youtube-dlc -U  to update. Be sure to call youtube-dlc with the --verbose flag and include its complete output.
  File "youtube_dlc\extractor\common.py", line 632, in _request_webpage
  File "youtube_dlc\YoutubeDL.py", line 2308, in urlopen
  File "urllib\request.py", line 531, in open
  File "urllib\request.py", line 640, in http_response
  File "urllib\request.py", line 569, in error
  File "urllib\request.py", line 502, in _call_chain
  File "urllib\request.py", line 649, in http_error_default