Hi @JaisJessen, welcome to the GitHub Support Community!
Looking at the source code for your site it looks like you’re referencing assets using the external URL
This may be working on your local machine as you’ve set up this URL using your
hosts file to point to a local development server or, if these files are available at that URL on the internet, access has been limited to your specific IP.
You’ll need to update these asset links to point to files from inside your repository, either using relative links or pointing to links that use your
github.io URL, or to an external URL where these files are available.