I admit it! I am dumb!

A few things:

https://obstacleracers.com.au/news/forums/ – all good

However, if I try and create a topic through the Word Press dashboard as the administrator it works just fine.

If I straight to the forum front end and try post from there whilst logged in as Mr Administrator, it does not create a topic and just goes back to the front page.

Also, if I log out and go to the My Profile section and hit Register it says that “User registration is currently not allowed.”

Like I said, I am dumb…

https://www.ads-software.com/extend/plugins/wp-bulletin-board/