All post links broken

Hi,

I’m building a wordpress blog with a few pages tacked on to promote our health/well-being/personal growth work.

My issue is that all individual post links take me to the same single obsolete post.
Category links work as expected and lead to a list of related posts, but following any of those links leads to the same issue, a single obsolete post.
Page links work as they should without issue.
The posts are imported from another wordpress site, and I think this may be the root of the issue.

I recently cleaned up the site using a plugin Advanced Database Cleaner, as I was getting warnings about too many/obsolete things loading on pages. I’m no expert and may have deleted something important that is causing the issue. I’m not sure if the issue predated the clean up.

I am using DIVI theme and builder, and recently upgraded (by mistake) to DIVI 5, which is in public alpha19. The theme window said there was an update for Divi, so I clicked it and followed the update and migration process. I have since reinstalled Divi 4. I have also tried the 2025 theme, but it does not solve the issue. Either Divi 4 or 5 theme does not seem to affect the issue.

I have tried resetting the permalink structure in the dashboard, it does nothing to resolve the issue of all posts linking to an obsolete post/article.

I deactivated my AIOSEO plugin to see if there was some redirect issue, no effect. Tried rankmath to create redirects to see if that could fix the issue, no effect.

Thanks in advance for any help, I’m out of ideas on how to fix this. I’m really hoping its just some simple thing I haven’t thought of yet. When researching the problem, I did see reference to looking at y htaccess file, but haven’t really pursued that yet.

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