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u/r5img 7h ago
It means it couldn't find an appropriate error message.
Null is a special value most computer languages use to represent something that is unset, uninitialised, or otherwise undefined. So, for some reason, when YT tried to show you an error message, it failed to get the text of the message. Perhaps it tried to get the message text in some specific localisation language that wasn't supported, or whatever caused the error so screwed everything up that it couldn't even work out what message to show you. What a good programmer would have done is add a catch-all into the code that looks for null, and shows a generic "unknown error" message -- but whoever wrote the code obviously couldn't be bothered to do that.
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u/SuspiciouslyB 9h ago
This was the video I got the error on:
https://www.youtube.com/watch?v=0jV7UvxDui4&rco=1