Had the same problem also. Turning off the Chrome extension Adblock did the trick for me.
I’ve been there, which is exactly why I was concerned about this for my own themes. Maybe an admin notice stating that the plugin must be activated for added features, as well as a reference to the documentation page would reduce some of the support issues/ratings issues.
This is a handy script for handling plugins on theme activation. https://github.com/thomasgriffin/TGM-Plugin-Activation