have a couple of issues that seemed to start about the same time.
1. if i try to update a post (save or save and continue editing) in the wp_admin, i get redirected to a blank page (no error). this worked last time i tried it a few days ago
2. i have a page called "About". there is a permalink to "about" on the home page which used to work, now it's suddenly does not (404 error). (the post slug is still "about" and if i manually navigate to "About" it works). like some case-insensitive translation stopped working somewhere, but only for this page. this also just started happening, but only on this page (other pages work fine)
i tried restarting apache, and it didn't help.
any help would be appreciated