[bokecc] Unable to extract player params

[ghost]

Checklist

• I'm reporting a broken site support
• I've verified that I'm running youtube-dl version 2019.09.28
• 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: Unable to extract player params; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
Traceback (most recent call last):
  File "/usr/lib/python3.7/site-packages/youtube_dl/YoutubeDL.py", line 796, in extract_info
    ie_result = ie.extract(url)
  File "/usr/lib/python3.7/site-packages/youtube_dl/extractor/common.py", line 530, in extract
    ie_result = self._real_extract(url)
  File "/usr/lib/python3.7/site-packages/youtube_dl/extractor/bokecc.py", line 59, in _real_extract
    'formats': self._extract_bokecc_formats(webpage, video_id),
  File "/usr/lib/python3.7/site-packages/youtube_dl/extractor/bokecc.py", line 15, in _extract_bokecc_formats
    webpage, 'player params')
  File "/usr/lib/python3.7/site-packages/youtube_dl/extractor/common.py", line 1014, in _html_search_regex
    res = self._search_regex(pattern, string, name, default, fatal, flags, group)
  File "/usr/lib/python3.7/site-packages/youtube_dl/extractor/common.py", line 1005, in _search_regex
    raise RegexNotFoundError('Unable to extract %s' % _name)
youtube_dl.utils.RegexNotFoundError: Unable to extract player params; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.

Description

'http://union.bokecc.com/playvideo.bo?vid=647281&uid=38117'
'http://union.bokecc.com/playvideo.bo?vid=E44D40C15E65EA30&uid=CD0C5D3C8614B28B'