Enabling All In One SEO Pack

I have successfully downloaded All In One SEO to my wordPress admin. I have created 7 pages and have edited all Title Tags, Description Tags, and Keywords for each page including the home page. That being said…

There is a message highlighted in red at the top pf my admin page that says “All in One SEO Pack must be configured. Go to the admin page to enable and configure the plugin.

Since I have downloaded and entered all necessary data for each page I have created in my WP Admin, why would I need to configure the SEO Pack, since it is already downloaded and all necessary data has been entered for each page?