Can not edit the Spirit Theme ... no sidebar shows up

The theme editor does not open when I click on the Theme - Customize or the Upfront shortcut on the Admin menu.

The page opens but there is no lefthand sidebar with the editing options visible. Can not edit any of the theme options, header, footer, logo etc.

I had tried the Scribe theme first and had the same problem so tried to change to Spirit as I thought the layout was better.