React build error

[clarnx]

Hi @Adham007 , thanks for the post and welcome.
First of all kindly check the support guide below to see if it helps.

[Support Guide] I’ve deployed my site but I still see "Page not found”

Last reviewed by Netlify Support - August, 2023 Netlify attempts to lookup a file based on several xor filters, and when all of these fail, we end up serving a 404 page. For example, a request made to /example/ would check /example/index.html, /example.html, /example/home.html and several other combinations (not necessarily in the same order) before hitting the 404. However, in case you were not expecting a 404 at a particular URL, you might be interested in finding out the reason and potentia…

If the above does not help. kindly share your build logs or a repository of your website so that we can help with the debugging.

Thanks.