404 error with mp4's & fonts

Hi @Siviwe82, thanks for the post.
I took a look at the repository you shared. Looks like your react application is in the my-app folder.
You need to set your base directory during deployment to the my-app directory.
Below are some resources to help you debug possible errors after deployment and also how to properly deploy React applications on Netlify

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

  2. Framework integrations | Netlify Docs

  3. Deployment | Create React App

Thanks.