error for fractured

2012-05-21 04:18:30 [INFO] [WorldGenCtrl] [48.00%] Section 13/25
2012-05-21 04:18:33 [INFO] [WorldGenCtrl] [52.00%] Section 14/25
2012-05-21 04:18:36 [INFO] [WorldGenCtrl] [56.00%] Section 15/25
2012-05-21 04:18:39 [SEVERE] java.lang.StackOverflowError
2012-05-21 04:18:39 [SEVERE] 	at org.bukkit.craftbukkit.CraftServer.getLogger(CraftServer.java:789)
2012-05-21 04:18:39 [SEVERE] 	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:479)
2012-05-21 04:18:39 [SEVERE] 	at net.minecraft.server.World.k(World.java:510)
2012-05-21 04:18:39 [SEVERE] 	at net.minecraft.server.World.applyPhysics(World.java:493)
2012-05-21 04:18:39 [SEVERE] 	at net.minecraft.server.World.update(World.java:459)
2012-05-21 04:18:39 [SEVERE] 	at net.minecraft.server.World.setTypeId(World.java:434)
2012-05-21 04:18:39 [SEVERE] 	at net.minecraft.server.BlockSoil.doPhysics(BlockSoil.java:105)
2012-05-21 04:18:39 [SEVERE] 	at net.minecraft.server.World.k(World.java:518)
2012-05-21 04:18:39 [SEVERE] 	at net.minecraft.server.World.applyPhysics(World.java:494)
2012-05-21 04:18:39 [SEVERE] 	at net.minecraft.server.World.update(World.java:459)
2012-05-21 04:18:39 [SEVERE] 	at net.minecraft.server.World.setTypeId(World.java:434)