@esmi moderator and @mrmist,
Thanks, again! After wasting 45 minutes on the phone with my hosting company, I decided to try deactivating all my plugins and reactivating them one by one. I found the culprit! The “Redirection” plugin automatically redirects to a /blog page, which doesn’t exist. I even reinstalled it, and it automatically did the same thing! I found a different 301 redirect plugin and learned a valuable lesson…too bad it ate up so much time!