Unable to download webpage: HTTP Error 403: Forbidden (caused by HTTPError())

[vladano]

youtube-dl --username "" --password "" --verbose --sleep-interval 120 "https://app.pluralsight.com/library/courses/client-side-powershell-scripting-sccm"
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['--username', 'PRIVATE', '--password', 'PRIVATE', '--verbose', '--sleep-interval', '120', 'https://app.pluralsight.com/library/courses/client-side-powershell-scripting-sccm/']
[debug] Encodings: locale cp1250, fs mbcs, out cp852, pref cp1250
[debug] youtube-dl version 2020.05.29
[debug] Python version 3.4.4 (CPython) - Windows-10-10.0.18362
[debug] exe versions: none
[debug] Proxy map: {'no': '...*'}
[pluralsight:course] client-side-powershell-scripting-sccm: Downloading JSON metadata
[download] Downloading playlist: Client-Side PowerShell Scripting for Reliable SCCM Deployments
[pluralsight:course] playlist Client-Side PowerShell Scripting for Reliable SCCM Deployments: Collected 37 video ids (downloading 37 of them)
[download] Downloading video 1 of 37
[pluralsight] Downloading login page
ERROR: Unable to download webpage: HTTP Error 403: Forbidden (caused by HTTPError()); 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.
File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpxtvjzx45\build\youtube_dl\extractor\common.py", line 627, in _request_webpage
File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpxtvjzx45\build\youtube_dl\YoutubeDL.py", line 2238, in urlopen
File "C:\Python\Python34\lib\urllib\request.py", line 470, in open
File "C:\Python\Python34\lib\urllib\request.py", line 580, in http_response
File "C:\Python\Python34\lib\urllib\request.py", line 508, in error
File "C:\Python\Python34\lib\urllib\request.py", line 442, in _call_chain
File "C:\Python\Python34\lib\urllib\request.py", line 588, in http_error_default