I was upgrading my Wordpress MU and used the Wordpress Automatic Upgrade plug-in. Everything seemed to work fine, and I got a new Wordpress log-in screen, but when I use my old log-in name and password, it gives me the message:
You do not have sufficient permissions to access this page. I also noticed that the "MU" portion of my site has disappeared. I suspect I used an plain WP automatic upgrade that doesn't upgrade WP MU.
Any ideas what I should do? I'm not quite sure on how to restore my old MU with my backed up files.