could not download from Arte mediathek

[PeterSchwalm]

could not download a file (.mp4) from arte mediathek.

output from youtube-dl:

youtube-dl.exe --verbose https://arteconcert-a.akamaihd.net/am/concert/095000/095900/095907-001-A_SQ_0_VO_05163268_MP4-2200_AMM-CONCERT-NEXT_1NwGct6JKP.mp4 >x1.out 2>&1

[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['--verbose', 'https://arteconcert-a.akamaihd.net/am/concert/095000/095900/095907-001-A_SQ_0_VO_05163268_MP4-2200_AMM-CONCERT-NEXT_1NwGct6JKP.mp4']
[debug] Encodings: locale cp1252, fs mbcs, out cp1252, pref cp1252
[debug] youtube-dl version 2020.07.28
[debug] Python version 3.4.4 (CPython) - Windows-10-10.0.17763
[debug] exe versions: ffmpeg N-80011-gaf3e944, ffprobe N-93276-g3b23eb283a
[debug] Proxy map: {}
[generic] 095907-001-A_SQ_0_VO_05163268_MP4-2200_AMM-CONCERT-NEXT_1NwGct6JKP: Requesting header
WARNING: Could not send HEAD request to https://arteconcert-a.akamaihd.net/am/concert/095000/095900/095907-001-A_SQ_0_VO_05163268_MP4-2200_AMM-CONCERT-NEXT_1NwGct6JKP.mp4: HTTP Error 404: Not Found
[generic] 095907-001-A_SQ_0_VO_05163268_MP4-2200_AMM-CONCERT-NEXT_1NwGct6JKP: Downloading webpage
ERROR: Unable to download webpage: HTTP Error 404: Not Found (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\tmpq2whuxta\build\youtube_dl\extractor\common.py", line 627, in _request_webpage
File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpq2whuxta\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