unsupported URL: https://member.pb-institute.de/mitglieder/

[aix2020]

Hi,
please can someone help me?
Thank you
aix2020
Here the error message:
youtube-dl -v https://member.pb-institute.de/mitglieder/courses/perform-better-online-summit-2020/functional-training/brendon-rearick-exercise-checklists/ --username --password
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['-v', 'https://member.pb-institute.de/mitglieder/courses/perform-better-online-summit-2020/functional-training/brendon-rearick-exercise-checklists/', '--username', 'PRIVATE', '--password', 'PRIVATE']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2020.06.16.1
[debug] Python version 3.6.9 (CPython) - Linux-5.3.0-62-generic-x86_64-with-Ubuntu-18.04-bionic
[debug] exe versions: ffmpeg 3.4.6, ffprobe 3.4.6
[debug] Proxy map: {}
[generic] brendon-rearick-exercise-checklists: Requesting header
[redirect] Following redirect to https://member.pb-institute.de/mitglieder/
[generic] mitglieder: Requesting header
WARNING: Falling back on generic information extractor.
[generic] mitglieder: Downloading webpage
[generic] mitglieder: Extracting information
ERROR: Unsupported URL: https://member.pb-institute.de/mitglieder/
Traceback (most recent call last):
File "/home/xxxx/.local/lib/python3.6/site-packages/youtube_dl/YoutubeDL.py", line 797, in extract_info
ie_result = ie.extract(url)
File "/home/xxxx/.local/lib/python3.6/site-packages/youtube_dl/extractor/common.py", line 530, in extract
ie_result = self._real_extract(url)
File "/home/xxxx/.local/lib/python3.6/site-packages/youtube_dl/extractor/generic.py", line 3382, in _real_extract
raise UnsupportedError(url)
youtube_dl.utils.UnsupportedError: Unsupported URL: https://member.pb-institute.de/mitglieder/

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• I'm reporting a broken site support issue
• I've verified that I'm running youtube-dl version 2020.06.16.1
• 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

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