I installed the WPMU Dashboard and activated the Membership plug-in. Now, I keep getting "500 internal server" error messages whenever I attempt to access my site.
I changed my plug-ins folder to DEACTIVATEplugins via FTP, and even deleted the Membership plug-in, but it's still not working.
Please help... I haven't changed anything else and my site was running perfectly before I installed your plug-ins.