I just downloaded all three files again to a new folder. I’ve now moved that folder to my plugins directory. The plugin is still not showing up.
I’ve cleaned up my plugins directory; I now only have 11 plugins activated and I’ve removed all of my deactivated plugins.
All 11 plugins (as well as before when I had 17 activated plugins) are displayed on one page.
Thank you so much for working with me,
Brad