I just updated 3 plugins, BuddyPress, WP Security Scan, and either All in One SEO Pack, or the Google XML Sitemaps.
Right before upgrading those, I received an email that someone posted a comment that needed to be approved first, it was a spammer of course. I didn't go to any links or anything. I'm 99% sure the spammer had nothing to do with it. But, when I went in to delete it, I noticed that some plugins could be upgraded. Before upgrading, the site was working fine, but right after upgrading the plugins, I tried going back to the main blog and it is just a blank page now. But, the other blogs work?
ciaravinodesign.com is the main blog. A sub blog is dev.ciaravinodesign.com