Bukkit

What steps will reproduce the problem?
1.Try to buy a chunk
2.
3.

What is the expected output? What do you see instead?
Internal Error

What version of the product are you using?
1.0.2

Do you have an error log of what happened?
2013-06-08 00:25:31 [INFO] cchr issued server command: /co buy
2013-06-08 00:25:34 [SEVERE] null
org.bukkit.command.CommandException: Unhandled exception executing command 'co' in plugin ChunkOwn v1.0.2
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46)
    at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:189)
    at org.bukkit.craftbukkit.v1_5_R3.CraftServer.dispatchCommand(CraftServer.java:561)
    at net.minecraft.network.NetServerHandler.func_72566_d(NetServerHandler.java:1389)
    at net.minecraft.network.NetServerHandler.chat(NetServerHandler.java:1249)
    at net.minecraft.network.NetServerHandler.func_72481_a(NetServerHandler.java:1175)
    at net.minecraft.network.packet.Packet3Chat.func_73279_a(Packet3Chat.java:60)
    at net.minecraft.network.TcpConnection.func_74428_b(TcpConnection.java:442)
    at net.minecraft.network.NetServerHandler.func_72570_d(NetServerHandler.java:222)
    at net.minecraft.network.NetworkListenThread.func_71747_b(NetworkListenThread.java:53)
    at net.minecraft.server.dedicated.DedicatedServerListenThread.func_71747_b(SourceFile:30)
    at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:860)
    at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:320)
    at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:729)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:613)
    at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:573)
Caused by: java.lang.RuntimeException: java.sql.SQLException: [SQLITE_BUSY]  The database file is locked (database is locked)
    at com.alta189.simplesave.sqlite.SQLiteDatabase.save(SQLiteDatabase.java:384)
    at com.alta189.simplesave.Database.save(Database.java:107)
    at com.greatmancode.craftconomy3.account.Account.withdraw(Account.java:270)
    at net.milkbowl.vault.economy.plugins.Economy_Craftconomy3.withdrawPlayer(Economy_Craftconomy3.java:304)
    at net.milkbowl.vault.economy.plugins.Economy_Craftconomy3.withdrawPlayer(Economy_Craftconomy3.java:128)
    at com.codisimus.plugins.chunkown.Econ.buy(Econ.java:53)
    at com.codisimus.plugins.chunkown.ChunkOwnCommand.buy(ChunkOwnCommand.java:273)
    at com.codisimus.plugins.chunkown.ChunkOwnCommand.onCommand(ChunkOwnCommand.java:74)
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44)
    ... 15 more
Caused by: java.sql.SQLException: [SQLITE_BUSY]  The database file is locked (database is locked)
    at org.sqlite.DB.newSQLException(DB.java:383)
    at org.sqlite.DB.newSQLException(DB.java:387)
    at org.sqlite.DB.execute(DB.java:339)
    at org.sqlite.DB.executeUpdate(DB.java:363)
    at org.sqlite.PrepStmt.executeUpdate(PrepStmt.java:85)
    at com.alta189.simplesave.sqlite.SQLiteDatabase.save(SQLiteDatabase.java:362)
    ... 23 more

Please provide any additional information below.

Solved.

The problem was in CraftConomy3 (database.db). Probably a server crash ruined the SQLite file. There was a duplicate entry. So vault/chunkown/craftconomy couldn't handle the transaction. Deleting the associated database entrys solved it.