2011-03-06 11:20:54 [SEVERE] com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

Last packet sent to the server was 7 ms ago.
2011-03-06 11:20:54 [SEVERE] 	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
2011-03-06 11:20:54 [SEVERE] 	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
2011-03-06 11:20:54 [SEVERE] 	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
2011-03-06 11:20:54 [SEVERE] 	at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
2011-03-06 11:20:54 [SEVERE] 	at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
2011-03-06 11:20:54 [SEVERE] 	at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1074)
2011-03-06 11:20:54 [SEVERE] 	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2985)
2011-03-06 11:20:54 [SEVERE] 	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2871)
2011-03-06 11:20:54 [SEVERE] 	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3414)
2011-03-06 11:20:54 [SEVERE] 	at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1936)
2011-03-06 11:20:54 [SEVERE] 	at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2060)
2011-03-06 11:20:54 [SEVERE] 	at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2542)
2011-03-06 11:20:54 [SEVERE] 	at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1734)
2011-03-06 11:20:54 [SEVERE] 	at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1885)
2011-03-06 11:20:54 [SEVERE] 	at com.nijiko.coelho.iConomy.net.iDatabase.resultQuery(iDatabase.java:41)
2011-03-06 11:20:54 [SEVERE] 	at com.nijiko.coelho.iConomy.system.Account.save(Account.java:110)
2011-03-06 11:20:54 [SEVERE] 	at com.nhksos.jjfs85.BetterShop.BSutils.credit(BSutils.java:31)
2011-03-06 11:20:54 [SEVERE] 	at com.nhksos.jjfs85.BetterShop.BSCommand.sell(BSCommand.java:411)
2011-03-06 11:20:54 [SEVERE] 	at com.nhksos.jjfs85.BetterShop.BetterShop.onCommand(BetterShop.java:163)
2011-03-06 11:20:54 [SEVERE] 	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:31)
2011-03-06 11:20:54 [SEVERE] 	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:80)
2011-03-06 11:20:54 [SEVERE] 	at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:183)
2011-03-06 11:20:54 [SEVERE] 	at net.minecraft.server.NetServerHandler.c(NetServerHandler.java:619)
2011-03-06 11:20:54 [SEVERE] 	at net.minecraft.server.NetServerHandler.chat(NetServerHandler.java:582)
2011-03-06 11:20:54 [SEVERE] 	at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:576)
2011-03-06 11:20:54 [SEVERE] 	at net.minecraft.server.Packet3Chat.a(SourceFile:24)
2011-03-06 11:20:54 [SEVERE] 	at net.minecraft.server.NetworkManager.a(SourceFile:230)
2011-03-06 11:20:54 [SEVERE] 	at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:75)
2011-03-06 11:20:54 [SEVERE] 	at net.minecraft.server.NetworkListenThread.a(SourceFile:100)
2011-03-06 11:20:54 [SEVERE] 	at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:357)
2011-03-06 11:20:54 [SEVERE] 	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:272)
2011-03-06 11:20:54 [SEVERE] 	at net.minecraft.server.ThreadServerApplication.run(SourceFile:366)
2011-03-06 11:20:54 [SEVERE] Caused by: java.io.EOFException: Can not read response from server. Expected to read 4 bytes, read 0 bytes before connection was unexpectedly lost.
2011-03-06 11:20:54 [SEVERE] 	at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:2431)
2011-03-06 11:20:54 [SEVERE] 	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2882)
2011-03-06 11:20:54 [SEVERE] 	... 25 more
2011-03-06 11:20:54 [SEVERE] java.lang.NullPointerException
2011-03-06 11:20:54 [SEVERE] 	at com.nijiko.coelho.iConomy.system.Account.save(Account.java:115)
2011-03-06 11:20:54 [SEVERE] 	at com.nhksos.jjfs85.BetterShop.BSutils.credit(BSutils.java:31)
2011-03-06 11:20:54 [SEVERE] 	at com.nhksos.jjfs85.BetterShop.BSCommand.sell(BSCommand.java:411)
2011-03-06 11:20:54 [SEVERE] 	at com.nhksos.jjfs85.BetterShop.BetterShop.onCommand(BetterShop.java:163)
2011-03-06 11:20:54 [SEVERE] 	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:31)
2011-03-06 11:20:54 [SEVERE] 	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:80)
2011-03-06 11:20:54 [SEVERE] 	at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:183)
2011-03-06 11:20:54 [SEVERE] 	at net.minecraft.server.NetServerHandler.c(NetServerHandler.java:619)
2011-03-06 11:20:54 [SEVERE] 	at net.minecraft.server.NetServerHandler.chat(NetServerHandler.java:582)
2011-03-06 11:20:54 [SEVERE] 	at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:576)
2011-03-06 11:20:54 [SEVERE] 	at net.minecraft.server.Packet3Chat.a(SourceFile:24)
2011-03-06 11:20:54 [SEVERE] 	at net.minecraft.server.NetworkManager.a(SourceFile:230)
2011-03-06 11:20:54 [SEVERE] 	at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:75)
2011-03-06 11:20:54 [SEVERE] 	at net.minecraft.server.NetworkListenThread.a(SourceFile:100)
2011-03-06 11:20:54 [SEVERE] 	at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:357)
2011-03-06 11:20:54 [SEVERE] 	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:272)
2011-03-06 11:20:54 [SEVERE] 	at net.minecraft.server.ThreadServerApplication.run(SourceFile:366)