Live Preview Not Working

Live preview is not working for this theme only. The sidebar loads, and the gray “loading” circle goes round and round.

I have tried activating the theme and customizing as well as live preview (while another theme is active), and neither works.

I’ve tested this in Firefox and Chrome.

Just in case the preview was failing only for newly downloaded themes, I tried adding a different theme, but that worked fine.

I’d really like to be able to use this theme as a client has requested this one by name.