Upfront tools are not appearing

I’ve activated a theme (Fixer), and am trying to use Upfront to customize it, but it doesn’t seem to be working. None of the menu options appear as they do on your website’s ‘live demo.’

Also, in your instructional “Upfront Part 1” (https://premium.wpmudev.org/blog/upfront-basics/), it says when I hover a mouse I should get a red x as an option. None of this appears when I attempt to edit my site.

Please help. Thanks!