Bukkit will attempt to fix this, but there may be additional damage that we cannot recover.

Code:

05.02 09:42:45 [Server] INFO Read timed out
05.02 09:42:44 [Server] INFO Read timed out
05.02 09:42:35 [Server] INFO Read timed out
05.02 09:42:28 [Server] INFO Read timed out
05.02 09:42:25 [Server] INFO Read timed out
05.02 09:42:01 [Server] INFO Connection reset
05.02 09:41:55 [Server] INFO Read timed out
05.02 09:41:45 [Server] INFO /landmines list
05.02 09:41:20 [Server] INFO    at net.minecraft.server.ThreadServerApplication.run(SourceFile:465)
05.02 09:41:20 [Server] INFO    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:435)
05.02 09:41:20 [Server] INFO    at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:528)
05.02 09:41:20 [Server] INFO    at net.minecraft.server.World.tickEntities(World.java:1173)
05.02 09:41:20 [Server] INFO    at net.minecraft.server.TileEntityFurnace.l_(TileEntityFurnace.java:180)
05.02 09:41:20 [Server] INFO    at net.minecraft.server.BlockFurnace.a(SourceFile:114)
05.02 09:41:20 [Server] INFO    at net.minecraft.server.World.setTypeId(World.java:438)
05.02 09:41:20 [Server] INFO    at net.minecraft.server.World.setRawTypeId(World.java:371)
05.02 09:41:20 [Server] INFO    at net.minecraft.server.Chunk.a(Chunk.java:386)
05.02 09:41:20 [Server] INFO    at org.getspout.spout.block.mcblock.CustomChest.remove(CustomChest.java:210)
05.02 09:41:20 [Server] INFO    at net.minecraft.server.BlockChest.remove(SourceFile:225)
05.02 09:41:20 [Server] INFO java.lang.ClassCastException: net.minecraft.server.TileEntityFurnace cannot be cast to net.minecraft.server.TileEntityChest
05.02 09:41:20 [Server] SEVERE Unexpected exception
05.02 09:41:20 [Server] SEVERE    at net.minecraft.server.ThreadServerApplication.run(SourceFile:465)
05.02 09:41:20 [Server] SEVERE    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:435)
05.02 09:41:20 [Server] SEVERE    at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:528)
05.02 09:41:20 [Server] SEVERE    at net.minecraft.server.World.tickEntities(World.java:1173)
05.02 09:41:20 [Server] SEVERE    at net.minecraft.server.TileEntityFurnace.l_(TileEntityFurnace.java:180)
05.02 09:41:20 [Server] SEVERE    at net.minecraft.server.BlockFurnace.a(SourceFile:114)
05.02 09:41:20 [Server] SEVERE    at net.minecraft.server.World.setTypeId(World.java:438)
05.02 09:41:20 [Server] SEVERE    at net.minecraft.server.World.setRawTypeId(World.java:371)
05.02 09:41:20 [Server] SEVERE    at net.minecraft.server.Chunk.a(Chunk.java:386)
05.02 09:41:20 [Server] SEVERE    at org.getspout.spout.block.mcblock.CustomChest.remove(CustomChest.java:210)
05.02 09:41:20 [Server] SEVERE    at net.minecraft.server.BlockChest.remove(SourceFile:225)
05.02 09:41:20 [Server] SEVERE java.lang.ClassCastException: net.minecraft.server.TileEntityFurnace cannot be cast to net.minecraft.server.TileEntityChest
05.02 09:41:20 [Server] SEVERE Block at 513,81,-355 is FURNACE but has net.minecraft.server.TileEntityChest@2fc3a4a4. Bukkit will attempt to fix this, but there may be additional damage that we cannot recover.

Any idea what just happened?

 

Your world somehow got corrupted..Try using Chunkster