menus don't show up in control panel for modification in the control panel

When I go to the dashboard and select
Appearance > Menus
the menu doesn’t show up. I looked a bit into the code and found the name of the menu was “primary”. I typed the name into the Menus screen, and some info showed up, but it was still lacking the ability to rename menu links (i.e.: Home instead of My Company First page). I’ve worked with other themes on other sites, and the menu contents are flexible and easily modifiable, but I don’t see how to do that with Elisium.