Crystal Oasis zone crash on "Ferguson's Crossing" server

Same thing was happening constantly yesterday afternoon, then it got much better yesterday evening and overnight. Now suddenly it's happening again."Crystal Oasis" zone will spontaneously bomb out, kicking everyone in it, and booting them all back to desktop after a quick error message pops up at character select. (Error message only pops briefly before a client shut down, so I can't read it. Sorry.)