As a disclaimer, this is a boudoir photography site so the images are in good taste but probably NSFW.
A few days ago I transferred this site from another domain. Everything went smoothly. Out of nowhere yesterday the Blog page stopped working. Everything else is working fine. The only thing that changed was that client changed the admin password. I tried changing it back to the original password but it didn't help.
I have already tried disabling all plugins and reverting back to the default theme, but it still won't show up. If I change the permalink to something else, the page will just show up as a 404 error.