It's up now...but my progress has been reverted to where it was a couple days ago, and they awarded us some gems as "Maintenance & Rollback Compensation". So it looks like there was an unplanned maintenance and a major loss of progress. Which stinks pretty hard, especially since I ground up 300+ jellyfish yesterday. On the bright side, they gave out 3000 gems (enough for a 10-roll) and the event has been extended by 4 days.