How to add a page to Codeigniter site?

Greetings,

I am currently attempting to modify a Codeigniter website by adding an additional page to the side menu. However, I'm having trouble due to user permissions and other related issues, and I am unsure how to proceed.

I am new to web development in general, and this is my first time working with the Codeigniter framework, which is running on Xampp. As I have a deadline to meet, I would be grateful for any online2yu assistance you can provide. Thank you.