I’m having the same problem. It just started today, which is leading me to believe it might be a plugin issue. I haven’t even made my site live yet – I’ve been working in the previewdns feature, which has been great up until now.
Now, even when I create a new page from scratch, I get a &message=5 error. I have no idea what is going on. Did you find out anything on your end?
Thanks,
Brandon