Alrighty you're good to go, and I've fixed the problem that caused it in the first place. It was caused by an inefficiency in the codebase that didn't take your forum's massive size into consideration (ultimately, it was just a handful of poorly written queries).
So sorry for the trouble there. It shouldn't happen again.
No problem, thanks for the super fast fix! I wasn't expecting anything until the next day; but we noticed it was back up and working at a late hour last night.