Try printing ( with log) the command you are trying to execute, run it in a seperate command line to see if it's working properly.
since it's related to input I am suspecting the problem is with the youtube url you are providing
Captcha breaker error ERROR_KEY_DOES_NOT_EXIST (but works with GSA)
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I choose:
- solve captcha
- antigate
- empty key/server field
And I get this:

I tried browsing russian forum but i dont think anyone found fix
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then I get this:

is it about page URL? I use this one:
https://en.wiktionary.org/w/index.php?title=Special:CreateAccount -
@yourfriendkarol there should be a captchasniper server url