[Theme: BlankSlate] Version 1.8 Error: Please Read Here

1.8 has a missing </div> causing the sidebar to be pushed down.

For the time being either use 1.7:

https://www.ads-software.com/extend/themes/download/blankslate.1.7.zip

Or contact us for the latest version:

https://tidythemes.com/contact/

Thanks

https://www.ads-software.com/extend/themes/blankslate/