Seems back up now. Cool that we got no response on this issue. Curse has really gone to shit these past six months. I've got users yelling at me over the packaging bug, and now they're telling me the Client is forcing Alpha builds on them when they set it to Release, again blaming me. The whole platform is inherently unreliable now. It had a good run, but I guess all things come to an end.
I'm not sure Curse Support is monitoring this forum, at least not as well as they monitor the email@example.com mailbox. I sent them a copy of this error and got a reply within 15 minutes that someone would look into it.