[Theme: Wu Wei] Wu Wie sidebar only displaying one widget

I am using the Wu Wei theme – this looked nicer on wordpress.com but I have now mived over to host it myself so I appear to have less functionality.

I am trying to add additional widgets to my side bar – i had three footers to add to on this version of the site https://neilastillgallery.wordpress.com but now I only have one here: https://www.neilastillgallery.co.uk.

I am OK at amending the php if someone can point me in the right direction…?!

https://www.ads-software.com/extend/themes/wu-wei/