It's showing a page not found error on everything except the home

Hi, I am encountering this Page Not Found error where when accessing locally through vs code, I can access all pages, for example, when I go to my home page everything works perfectly, but when I click on something in my navbar, like “About Me” for example, it gives me a Page Not Found error, but after uploading to Netlify, I cannot access any. I followed some instructions, like the _redirects file, but I still don’t understand it very well. I am using React, can anyone help me?

@guhms1998 It’s likely that this is your issue, and hopefully my explanation helps: