React up - gh-pages -Failed to load resource: the server responded with a status of 404 - reactjs

I have a problem with upload github pages.
Few mounths ago i upload my firts webpage on github with no problem (ZTM Course: Andrei Neagoie).
Now i do it exatly the same way, but i cant display the website. In console i have this error
enter image description here
Can you help me?
My repository: https://github.com/czechThomas/lfojtova
I do it by tutorial on: https://github.com/gitname/react-gh-pages/tree/master
I tried to google it, tried to aply diferent advice. But always the same error :(
I tried all advice on the internet, but without success

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As you can see that the web manage to deploy, but all the picture/images are not appearing on my website
https://github.com/stevenleesf/UOWMReact << github
https://stevenleesf.github.io/UOWMReact/ << website
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not
https://stevenleesf.github.io/images/Logo-WHITE.png
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I have successfully uploaded react app`s to github pages before, but this time when I try to upload a new page the code is pushed and everything looks fine in the repository, everything loads fine in the localhost. The problem is when I access the website in the console i get the error message above.
const res = await axios.get(' https://api.open5e.com/monsters/?limit=1086');
I am using this API, the limit is above 50 but I don`t believe this is the reason for the crash but I cannot think of anything else.
Website 1: (Currently redirects you to a 404 error page, as part of my attempt to solve the problem)
https://ottotsuma.github.io/MonsterSearch/
Repo - Website 1:
https://github.com/ottotsuma/MonsterSearch
Website 2:
https://ottotsuma.github.io/MonsterApiReact/
Repo all code:
https://github.com/ottotsuma/DnD-React
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Kind regards,
Sheep

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