I have the same problem. Did you find a fix?
Hi, I’ve tried renaming the theme, changing permissions to 755, moving the plugins to a temporary folder, I’ve even deleted a plugin that I thought might be the culprit. I thought I was getting somewhere when I got my login page back and the blog appeared, but even those have gone again now, just white space.
Is my only option now to delete everything but wp-content and manually upload everything else again do you think? Thanks