2012-07-07 10:57:02 [SEVERE] java.lang.IllegalArgumentException: Cannot measure distance between Arcadia and UnderVerse
2012-07-07 10:57:02 [SEVERE]    at org.bukkit.Location.distanceSquared(Location.java:381)
2012-07-07 10:57:02 [SEVERE]    at org.bukkit.Location.distance(Location.java:364)
2012-07-07 10:57:02 [SEVERE]    at lishid.orebfuscator.proximityhider.ProximityHider$1.run(ProximityHider.java:52)
2012-07-07 10:57:02 [SEVERE]    at org.bukkit.craftbukkit.scheduler.CraftWorker.run(CraftWorker.java:34)
2012-07-07 10:57:02 [SEVERE]    at java.lang.Thread.run(Thread.java:722)