Viki gives 403 error when using username and password

[shivsah]

Checklist

• I'm reporting a broken site support issue
• I've verified that I'm running youtube-dl version 2020.05.03
• 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 bug reports including closed ones
• I've read bugs section in FAQ

Verbose log

[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['--username', 'PRIVATE', '--password', 'PRIVATE', '-F', 'https://www.viki.com/videos/1097103v-descendants-of-the-sun-episode-1', '--verbose']
[debug] Encodings: locale cp1252, fs utf-8, out utf-8, pref cp1252
[debug] youtube-dl version 2020.05.03
[debug] Python version 3.7.3 (CPython) - Windows-10-10.0.18362-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; 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 2238, 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

I'm unable to download shows in 1080p because, everytime i use my login credentials i receive a 403 error.