ERROR: An extractor error has occurred. (caused by KeyError('errors',));

[ilgrank]

Checklist

Recently @dstftw closed #22887 marking it as duplicated without even telling what that issue is a duplicate of. I've re-checked the FAQ and the open issues: didn't find any (related to the 10.22 version at least, since many issues referencing the "KeyError" problem are marked as 'solved' in versions prior to 10.22).
By the way, this video does NOT require an account. You can freely view it, if that's the point.
IF the problem is the same as #22444, I then don't get how to have 'authenticated cookies'. While that may be an answer, it doesn't explain how to solve the problem (as again, I was able to view the video without any account whatsoever in the browser)

• I'm reporting a broken site support issue
• I've verified that I'm running youtube-dl version 2019.10.22
• 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

.\youtube-dl.exe : [debug] System config: []

 
[debug] User config: []

[debug] Custom config: []

[debug] Command-line args: ['https://it.dplay.com/nove/pizza-hero/stagione-2-episodio-1-firenze/', '--verbose']

[debug] Encodings: locale cp1252, fs mbcs, out cp1252, pref cp1252

[debug] youtube-dl version 2019.10.22

[debug] Python version 3.4.4 (CPython) - Windows-7-6.1.7601-SP1

[debug] exe versions: none

[debug] Proxy map: {}

[debug] Using fake IP 79.21.78.103 (IT) as X-Forwarded-For.
[DPlayIt] stagione-2-episodio-1-firenze: Downloading webpage
[DPlayIt] stagione-2-episodio-1-firenze: Downloading JSON metadata
ERROR: An extractor error has occurred. (caused by KeyError('errors',)); 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\tmpifszpy0p\build\youtube_dl\extractor\common.py", line 627, in _request_webpage
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpifszpy0p\build\youtube_dl\YoutubeDL.py", line 2237, 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
urllib.error.HTTPError: HTTP Error 400: Bad Request

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpifszpy0p\build\youtube_dl\extractor\dplay.py", line 326, in _real_extract
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpifszpy0p\build\youtube_dl\extractor\common.py", line 892, in _download_json
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpifszpy0p\build\youtube_dl\extractor\common.py", line 870, in _download_json_handle
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpifszpy0p\build\youtube_dl\extractor\common.py", line 660, in _download_webpage_handle
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpifszpy0p\build\youtube_dl\extractor\common.py", line 645, in _request_webpage
youtube_dl.utils.ExtractorError: Unable to download JSON metadata: HTTP Error 400: Bad Request (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.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpifszpy0p\build\youtube_dl\extractor\common.py", line 530, in extract
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpifszpy0p\build\youtube_dl\extractor\dplay.py", line 333, in _real_extract
KeyError: 'errors'
Traceback (most recent call last):
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpifszpy0p\build\youtube_dl\extractor\common.py", line 627, in _request_webpage
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpifszpy0p\build\youtube_dl\YoutubeDL.py", line 2237, 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
urllib.error.HTTPError: HTTP Error 400: Bad Request

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpifszpy0p\build\youtube_dl\extractor\dplay.py", line 326, in _real_extract
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpifszpy0p\build\youtube_dl\extractor\common.py", line 892, in _download_json
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpifszpy0p\build\youtube_dl\extractor\common.py", line 870, in _download_json_handle
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpifszpy0p\build\youtube_dl\extractor\common.py", line 660, in _download_webpage_handle
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpifszpy0p\build\youtube_dl\extractor\common.py", line 645, in _request_webpage
youtube_dl.utils.ExtractorError: Unable to download JSON metadata: HTTP Error 400: Bad Request (cause
d 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.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpifszpy0p\build\youtube_dl\extractor\common.py", line 530, in extract
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpifszpy0p\build\youtube_dl\extractor\dplay.py", line 333, in _real_extract
KeyError: 'errors'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpifszpy0p\build\youtube_dl\YoutubeDL.py", line 796, in extract_info
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpifszpy0p\build\youtube_dl\extractor\common.py", line 543, in extract
youtube_dl.utils.ExtractorError: An extractor error has occurred. (caused by KeyError('errors',)); 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.

Description

Hi
I have seen this error pop up from time to time in the issues, but it was always solved by updating to the latest version. I AM running on 22.10 version, so I think this could be a different issue.
I was able to play the video in Chrome 69 and Firefox.

Update: I think it is just rude and unpolite to simply close issues without even bothering to reference if, and where, the problem has been already been opened/fixed.
Ask yourself a question: if many people are opening the same issue after looking for it in the bugtracker, maybe is because the solution/duplicate issue is not that easy to to find.

When downloading
https://it.dplay.com/nove/pizza-hero/stagione-2-episodio-1-firenze
I just get the error:

ERROR: An extractor error has occurred. (caused by KeyError('errors',)); 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.