Hello Jake Arsenault !

You need to isntall the UNA connect module and it contains the following info there:

This module can be used to login to this site using another UNA site (master site) credentials.
To make it work, go to the master site, install "OAuth2 Server" module and add new client site, specify the desired title and the following URL:
https://ci.una.io/test/
Then enter generated on the master site the Key & Server pair in this module settings.

So you need to install and setup the OAuth app too.