logblock error in server.log

2011-03-03 02:07:32 [INFO] [LogBlock] Permissions enabled
2011-03-03 02:08:15 [SEVERE] [LogBlock] SQL exception
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

Last packet sent to the server was 7 ms ago.
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:530)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
	at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1074)
	at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2103)
	at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:718)
	at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:46)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:530)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
	at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:302)
	at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:282)
	at java.sql.DriverManager.getConnection(DriverManager.java:620)
	at java.sql.DriverManager.getConnection(DriverManager.java:200)
	at bootswithdefer.JDCBPool.ConnectionService.getConnection(ConnectionService.java:73)
	at bootswithdefer.JDCBPool.JDCConnectionDriver.connect(JDCConnectionDriver.java:41)
	at java.sql.DriverManager.getConnection(DriverManager.java:620)
	at java.sql.DriverManager.getConnection(DriverManager.java:222)
	at de.diddiz.LogBlock.LogBlock.getConnection(LogBlock.java:240)
	at de.diddiz.LogBlock.LogBlock.checkTables(LogBlock.java:252)
	at de.diddiz.LogBlock.LogBlock.onEnable(LogBlock.java:115)
	at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:140)
	at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:424)
	at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:187)
	at org.bukkit.craftbukkit.CraftServer.loadPlugin(CraftServer.java:80)
	at org.bukkit.craftbukkit.CraftServer.loadPlugins(CraftServer.java:61)
	at org.bukkit.craftbukkit.CraftServer.reload(CraftServer.java:199)
	at org.bukkit.command.SimpleCommandMap$ReloadCommand.execute(SimpleCommandMap.java:189)
	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:77)
	at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:177)
	at net.minecraft.server.NetServerHandler.c(NetServerHandler.java:638)
	at net.minecraft.server.NetServerHandler.chat(NetServerHandler.java:601)
	at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:595)
	at net.minecraft.server.Packet3Chat.a(SourceFile:24)
	at net.minecraft.server.NetworkManager.a(SourceFile:230)
	at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:70)
	at net.minecraft.server.NetworkListenThread.a(SourceFile:100)
	at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:349)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:264)
	at net.minecraft.server.ThreadServerApplication.run(SourceFile:366)
Caused by: java.net.ConnectException: Connection timed out
	at java.net.PlainSocketImpl.socketConnect(Native Method)
	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:320)
	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:181)
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:163)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:391)
	at java.net.Socket.connect(Socket.java:578)
	at java.net.Socket.connect(Socket.java:527)
	at java.net.Socket.<init>(Socket.java:424)
	at java.net.Socket.<init>(Socket.java:240)
	at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:253)
	at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:280)
	at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2026)
	... 37 more
2011-03-03 02:08:15 [SEVERE] null (Is it up to date?)
java.lang.NullPointerException
	at de.diddiz.LogBlock.LogBlock.checkTables(LogBlock.java:253)
	at de.diddiz.LogBlock.LogBlock.onEnable(LogBlock.java:115)
	at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:140)
	at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:424)
	at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:187)
	at org.bukkit.craftbukkit.CraftServer.loadPlugin(CraftServer.java:80)
	at org.bukkit.craftbukkit.CraftServer.loadPlugins(CraftServer.java:61)
	at org.bukkit.craftbukkit.CraftServer.reload(CraftServer.java:199)
	at org.bukkit.command.SimpleCommandMap$ReloadCommand.execute(SimpleCommandMap.java:189)
	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:77)
	at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:177)
	at net.minecraft.server.NetServerHandler.c(NetServerHandler.java:638)
	at net.minecraft.server.NetServerHandler.chat(NetServerHandler.java:601)
	at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:595)
	at net.minecraft.server.Packet3Chat.a(SourceFile:24)
	at net.minecraft.server.NetworkManager.a(SourceFile:230)
	at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:70)
	at net.minecraft.server.NetworkListenThread.a(SourceFile:100)
	at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:349)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:264)
	at net.minecraft.server.ThreadServerApplication.run(SourceFile:366)