Vantage Sidebar – Missing

I had a right-hand sidebar set up on my website Found Beats but, since trying to edit the homepage from the dashboard, the sidebar has disappeared!

I have checked the Theme Settings and the sidebar is still set to display to the right and there are still 3 widgets set up in the sidebar settings.

The only other thing I have done is to update Jetpack but have tried deactivating it but no change. I’ve also tried adding new (non-Jetpack) widgets and again no change.

This only seems to be affecting the home page.

Any ideas?

Thanks