Post page won’t edit

When I try to open the News – post page to try and edit it, it won’t open and displays ‘You are currently editing the page that shows your latest posts’. I’m not editing it as I finished editing the three post and remembered to update.

Am also trying to show old posts on the page and in the sidebar, without success. It just shows the three current posts.

Help please on both matters.

• This topic was modified 5 years, 3 months ago by Jan Dembowski. Reason: Moved to Fixing WordPress, this is not a Developing with WordPress topic

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