Quote from Alia Guys, I have corrected the fix.
Turned out that editor used by me was cutting out some symbols. Here is the correct code ( latest fix in bold):


2. FIX FOR VIDEOS ADDED VIA VIDEO PLUGIN.

a. Open your control panel>>go to ow_plugins/video/classes/video_providers.php
b. find line #72.
    Replace (what you currently have): self::PROVIDER_YOUTUBE => 'http://www.youtube(-nocookie)?.com/',
    By ( fixed code)  :   self::PROVIDER_YOUTUBE => '//www.youtube(-nocookie)?.com/',
c. same file, find line #116
   Replace:const clipUidPattern = 'http:\/\/www.youtube(-nocookie)?.com\/(v|embed)\/([^?&"]+)[?&"]';
  By :       const clipUidPattern = '\/\/www\.youtube(-nocookie)?\.com\/(v|embed)\/([^?&"]+)[?&"]';
           
 d. save changes.

Done.

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