I looked at my plugins and saw that the Home Reconstruction Pro Posttype wasn’t active, so I activated it. I was able to find the Run Importer button. After I hit the button and let it load, I then looked at my site and it says “404 Page Not Found”.
Thank you so much for the response! I successfully installed it as a plugin. When I go to Appearance, I only have Themes, Customize, Widget, Menu, Starter Templates, and Theme Filter Editor as options.