Backend broken on older website, several 404 errors in console

Hello everyone.

A client wants me to update his website from 2020, but the backend is visually and functionally broken. The console tells me that it fails to load the CSS and JS files:

This is my first time working with October CMS and I didn’t build the site. My first thought was that there’s something wrong with the PHP version.

I really appreciate anyone taking their time reading this and trying to help!

Hi and welcome @bogo-wbt

This looks like you may need to check that the .htaccess file is doing its job. In apache you may need to check that ModRewrite is enabled.