Main page is working but none of the sub pages are

My main website of https://www.delphiancreations.com is working. But when any of the pages on the menu is clicked, they do not work. I have tried deleting a page and creating a new one with a different title and the new one doesn’t show up either. All pages show up in my account so they are there.

I have my site hosted elsewhere and installed wordpress. I contacted the other company support and they said it was a wordpress issue.

Would uninstalling and reinstalling wordpress work and just start all over? Want to stick with that as a last resort so any help is appreciated.