%postname% Permalink Settings not working

I have built many wordpress websites, but for some reason the site I’m building: gordianrescuetraining.com is not working right. I set the permalinks to /%postname% as I always do, but this time it’s not working right. The pages I created don’t work.

I even un-installed and reinstalled WordPress, started from scratch clean and neat and it’s still not working. It does work when the permalinks are set to default (on both installs).

Does anybody have any idea why this would be? I’m totally lost.