youtube-dl: [prosiebenmaxx.de] Error 404 and malfunction in drm-protection-check

Checklist

• I’m reporting a broken site support
• I’ve verified that I’m running youtube-dl version 2021.12.17
• 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

Error 404 verbose log:
c:\Download>youtube-dl.exe -U
youtube-dl is up-to-date (2021.12.17)
c:\Download>youtube-dl.exe "https://www.prosiebenmaxx.de/anime/shakugan-no-shana/video/11-alles-endete-etwas-neues-begann-ganze-folge" -F -v
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['https://www.prosiebenmaxx.de/anime/shakugan-no-shana/video/11-alles-endete-etwas-neues-begann-ganze-folge', '-F', '-v']
[debug] Encodings: locale cp1252, fs mbcs, out cp850, pref cp1252
[debug] youtube-dl version 2021.12.17
[debug] Python version 3.4.4 (CPython) - Windows-10-10.0.19041
[debug] exe versions: ffmpeg 4.2.2, ffprobe 4.2.2
[debug] Proxy map: {}
[prosiebensat1] anime/shakugan-no-shana/video/11-alles-endete-etwas-neues-begann-ganze-folge: Downloading webpage
[prosiebensat1] 6595537: Downloading videos JSON
[prosiebensat1] 6595537: Downloading protocols JSON
WARNING: Unable to download JSON metadata: HTTP Error 404: Not Found
[prosiebensat1] 6595537: Downloading sources JSON
[prosiebensat1] 6595537: Downloading urls JSON
WARNING: Unable to download JSON metadata: HTTP Error 404: Not found
[prosiebensat1] 6595537: Downloading urls JSON
WARNING: Unable to download JSON metadata: HTTP Error 404: Not found
[prosiebensat1] 6595537: Downloading urls JSON
WARNING: Unable to download JSON metadata: HTTP Error 404: Not found
ERROR: No video formats found; 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.
Traceback (most recent call last):
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpupik7c6w\build\youtube_dl\YoutubeDL.py", line 815, in wrapper
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpupik7c6w\build\youtube_dl\YoutubeDL.py", line 836, in __extract_info
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpupik7c6w\build\youtube_dl\extractor\common.py", line 534, in extract
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpupik7c6w\build\youtube_dl\extractor\prosiebensat1.py", line 495, in _real_extract
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpupik7c6w\build\youtube_dl\extractor\prosiebensat1.py", line 440, in _extract_clip
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpupik7c6w\build\youtube_dl\extractor\prosiebensat1.py", line 162, in _extract_video_info
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpupik7c6w\build\youtube_dl\extractor\common.py", line 1374, in _sort_formats
youtube_dl.utils.ExtractorError: No video formats found; 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.

malfunction in drm-protection check:
c:\Download>youtube-dl.exe -v "https://www.prosiebenmaxx.de/anime/black-clover/video/14-die-aufnahmepruefung-der-magsichen-ritterorden-ganze-folge" -F
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['-v', 'https://www.prosiebenmaxx.de/anime/black-clover/video/14-die-aufnahmepruefung-der-magsichen-ritterorden-ganze-folge', '-F']
[debug] Encodings: locale cp1252, fs mbcs, out cp850, pref cp1252
[debug] youtube-dl version 2021.12.17
[debug] Python version 3.4.4 (CPython) - Windows-10-10.0.19041
[debug] exe versions: ffmpeg 4.2.2, ffprobe 4.2.2
[debug] Proxy map: {}
[prosiebensat1] anime/black-clover/video/14-die-aufnahmepruefung-der-magsichen-ritterorden-ganze-folge: Downloading webpage
[prosiebensat1] 6237106: Downloading videos JSON
ERROR: This video is DRM protected.
Traceback (most recent call last):
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpupik7c6w\build\youtube_dl\YoutubeDL.py", line 815, in wrapper
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpupik7c6w\build\youtube_dl\YoutubeDL.py", line 836, in __extract_info
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpupik7c6w\build\youtube_dl\extractor\common.py", line 534, in extract
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpupik7c6w\build\youtube_dl\extractor\prosiebensat1.py", line 495, in _real_extract
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpupik7c6w\build\youtube_dl\extractor\prosiebensat1.py", line 440, in _extract_clip
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpupik7c6w\build\youtube_dl\extractor\prosiebensat1.py", line 38, in _extract_video_info
youtube_dl.utils.ExtractorError: This video is DRM protected.

Description

I founded two bugs / errors on prosiebenmaxx.de: There is a Error 404 and a mafunction in the drm-protection-check. I posted both logs above. There are some clips, where I get the 404 Error (e.g. the link above). I tryed to download it serveral times, but youtube-dl answered the same 404 Error. Maybe in the extractor there are some lines, that are not working anymore? Futhermore the drm-protection check is not working. For example youtube-dl answered, that the clip is drm protected. In the header of the side, one can read, that there is no drm protection: meta data-react-helmet=“true” property=“video:drm” content=“0” I downloded the clip manually and vlc can play that clip. I am sorry for my english. I know it is not quiet good, but I hope, I posted a helpful log.