Due to a data integrity glitch associated with today's update, the regional PC/Playstation 2 servers are receiving a rollback. All player data is being restored to a point right before the update. Any items that may have been found/synthed or any levels gained in the meantime will be lost. You can share your thoughts about this development in our Phantasy Star Universe forum.
EDIT: The Collector mission update has been removed. It is expected that a fixed version will return next week.