React app – gh-pages does not find my js and css file – error 404

gh-pages does not find my js and css file. It gives a 404 error, as a result – a white screen.

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here is my repository –
https://github.com/Beliy14/Soc-Sec-online
I will be grateful if anyone helps!

I tried to transfer the link to the js and css file inside the html, but nothing has changed.