Hey there! We will likely need some additional details in order to help you solve this problem. When you say WordPress isn't showing up, do you get an error message or is a different page appearing? Also, WordPress Manager has been deprecated for some time, so it might be best to start over with WordPress Toolkit using the details here:
This document explains how to install, manage, and upgrade the WP Toolkit.
If WordPress Toolkit isn't available on your machine, you may need to speak with your hosting provider or datacenter to see if they can get that installed for you. If you have root access to the server, there are installation instructions in that link as well.