Can't see appearance - widgets

Hi - we have a website build with sage but for some reason the appearance/widgets section isn’t showing in our admin. We are new to this install and would like to add a four column widget to the footer area. Could someone advise how we can get widgets showing on our admin please as our hands are a bit tied without it.

Many thanks

Most likely your theme hasn’t registered any widget sidebars. The location depends on your version of Sage, but look for something like this: in your theme that may be commented out.