Below Nav Widget

I want to get this below the nav widget onto the other MENU pages but I can’t even seem to amend or find any content on this page at all, it’s not there!
https://cra.org.za/category/community-information/

I want to add the same below nav widget to these 2 pages:
SECURITY MENU: https://cra.org.za/category/community-information/security/
MEMBERSHIP MENU: https://cra.org.za/membership/

But I can’t find the main pages for any of the other pages with this widget – the page has no information or text or plugins or widgets.

The page I need help with: [log in to see the link]