CI in a Linux environment setup

The $system needs to point to the Codeigniter system directory.

Where is CodeIgniter installed and what version have you installed?

As far as I know CI is inside the folder project that's why I asked if possible you could test to download my project and run it.

I have version 3.1.1 installed inside 20190916Bibliotecas there's everything, this is from a template we created in class where everytime we create a new project I just need to edit application/config, .htaccess in the root folder, and scripts.js from the scripts folder just to point in the correct URL, something like: http://localhost/20190916Bibliotecas/, as I said I just copy this folder and every other projet which contains CI and they're working fine on my windows partitions.