18:14:26 [INFO] [LogBlock] Version check: Your version is up to date
18:14:26 [INFO] [LogBlock] Connecting to username@jdbc:mysql://localhost:3306/minecraft...
18:14:26 [SEVERE] [LogBlock] Error while fetching connection
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:407)
	at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1116)
	at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:343)
	at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2334)
	at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2371)
	at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2163)
	at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:794)
	at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:407)
	at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:378)
	at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:305)
	at java.sql.DriverManager.getConnection(DriverManager.java:582)
	at java.sql.DriverManager.getConnection(DriverManager.java:185)
	at de.diddiz.util.MySQLConnectionPool.getConnection(MySQLConnectionPool.java:64)
	at de.diddiz.LogBlock.LogBlock.getConnection(LogBlock.java:180)
	at de.diddiz.LogBlock.LogBlock.onLoad(LogBlock.java:68)
	at org.bukkit.craftbukkit.CraftServer.loadPlugins(CraftServer.java:112)
	at net.minecraft.server.MinecraftServer.e(MinecraftServer.java:232)
	at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:219)
	at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:146)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:283)
	at net.minecraft.server.ThreadServerApplication.run(SourceFile:422)
Caused by: java.net.ConnectException: Connection refused
	at java.net.PlainSocketImpl.socketConnect(Native Method)
	at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351)
	at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213)
	at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:432)
	at java.net.Socket.connect(Socket.java:529)
	at java.net.Socket.connect(Socket.java:478)
	at java.net.Socket.<init>(Socket.java:375)
	at java.net.Socket.<init>(Socket.java:218)
	at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:254)
	at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:292)
	... 23 more
18:14:26 [SEVERE] [LogBlock] Error while loading:
java.lang.NullPointerException
	at de.diddiz.LogBlock.LogBlock.onLoad(LogBlock.java:68)
	at org.bukkit.craftbukkit.CraftServer.loadPlugins(CraftServer.java:112)
	at net.minecraft.server.MinecraftServer.e(MinecraftServer.java:232)
	at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:219)
	at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:146)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:283)
	at net.minecraft.server.ThreadServerApplication.run(SourceFile:422)