23:04:49 [SEVERE] com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operations allowed after statement closed.
23:04:49 [SEVERE]       at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
23:04:49 [SEVERE]       at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
23:04:49 [SEVERE]       at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
23:04:49 [SEVERE]       at java.lang.reflect.Constructor.newInstance(Constructor.java:525)
23:04:49 [SEVERE]       at com.mysql.jdbc.Util.handleNewInstance(Util.java:407)
23:04:49 [SEVERE]       at com.mysql.jdbc.Util.getInstance(Util.java:382)
23:04:49 [SEVERE]       at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1013)
23:04:49 [SEVERE]       at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:987)
23:04:49 [SEVERE]       at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:982)
23:04:49 [SEVERE]       at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:927)
23:04:49 [SEVERE]       at com.mysql.jdbc.StatementImpl.checkClosed(StatementImpl.java:402)
23:04:49 [SEVERE]       at com.mysql.jdbc.PreparedStatement.setString(PreparedStatement.java:4386)
23:04:49 [SEVERE]       at ca.celticminstrel.signedit.SignsMap.get(SignsMap.java:262)
23:04:49 [SEVERE]       at ca.celticminstrel.signedit.SignEdit.lwcGetOwner(SignEdit.java:136)
23:04:49 [SEVERE]       at ca.celticminstrel.signedit.SignEdit.getSignOwner(SignEdit.java:74)
23:04:49 [SEVERE]       at ca.celticminstrel.signedit.SignEdit.isSignOwned(SignEdit.java:89)
23:04:49 [SEVERE]       at ca.celticminstrel.signedit.SignListener.onSignChange(SignListener.java:37)
23:04:49 [SEVERE]       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
23:04:49 [SEVERE]       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
23:04:49 [SEVERE]       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
23:04:49 [SEVERE]       at java.lang.reflect.Method.invoke(Method.java:601)
23:04:49 [SEVERE]       at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:301)
23:04:49 [SEVERE]       at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
23:04:49 [SEVERE]       at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:459)
23:04:49 [SEVERE]       at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:1265)
23:04:49 [SEVERE]       at net.minecraft.server.Packet130UpdateSign.handle(SourceFile:41)
23:04:49 [SEVERE]       at net.minecraft.server.NetworkManager.b(NetworkManager.java:229)
23:04:49 [SEVERE]       at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:113)
23:04:49 [SEVERE]       at net.minecraft.server.NetworkListenThread.a(NetworkListenThread.java:78)
23:04:49 [SEVERE]       at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:554)
23:04:49 [SEVERE]       at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:452)
23:04:49 [SEVERE]       at net.minecraft.server.ThreadServerApplication.run(SourceFile:490)
23:04:49 [SEVERE] [SimpleSignEdit] An SQL error has occurred:
23:04:49 [SEVERE] [SimpleSignEdit] --> No operations allowed after statement closed.
23:04:49 [WARNING] [SimpleSignEdit] This may indicate a loss of sign ownership data!
23:04:49 [SEVERE] Exception in thread "Thread-37"
23:04:49 [SEVERE] java.lang.NullPointerException
23:04:49 [SEVERE]       at ca.celticminstrel.signedit.SignsMap.initStatements(SignsMap.java:114)
23:04:49 [SEVERE]       at ca.celticminstrel.signedit.SignsMap.run(SignsMap.java:183)
23:04:49 [SEVERE]       at java.lang.Thread.run(Thread.java:722)