When I try to build the lift the server kicks out the below error. I did see where someone posted a similar error and it was stated it was fixed in version 31. I am currently using version 31 and the error persists.

2012-12-29 08:43:01 [SEVERE] Could not pass event BlockRedstoneEvent to Lift
org.bukkit.event.EventException
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:304)
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:482)
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:467)
at net.minecraft.server.BlockSign.doPhysics(BlockSign.java:124)
at net.minecraft.server.World.k(World.java:528)
at net.minecraft.server.World.applyPhysics(World.java:506)
at net.minecraft.server.World.update(World.java:469)
at net.minecraft.server.World.setTypeId(World.java:444)
at net.minecraft.server.BlockButton.h(BlockButton.java:103)
at net.minecraft.server.BlockButton.doPhysics(BlockButton.java:73)
at net.minecraft.server.World.k(World.java:528)
at net.minecraft.server.World.applyPhysics(World.java:507)
at net.minecraft.server.World.update(World.java:469)
at net.minecraft.server.World.setTypeId(World.java:444)
at net.minecraft.server.Block.removeBlockByPlayer(Block.java:809)
at net.minecraft.server.ItemInWorldManager.b(ItemInWorldManager.java:200)
at net.minecraft.server.ItemInWorldManager.breakBlock(ItemInWorldManager.java:243)
at net.minecraft.server.ItemInWorldManager.a(ItemInWorldManager.java:179)
at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:548)
at net.minecraft.server.Packet14BlockDig.handle(SourceFile:43)
at net.minecraft.server.NetworkManager.b(NetworkManager.java:234)
at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:119)
at net.minecraft.server.NetworkListenThread.a(NetworkListenThread.java:83)
at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:579)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:467)
at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)
Caused by: java.lang.NoSuchFieldError: WOOD_BUTTON
at net.croxis.plugins.lift.LiftRedstoneListener.onBlockRedstoneChange(LiftRedstoneListener.java:39)
at sun.reflect.GeneratedMethodAccessor27.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302)
... 26 more

Looks like my fix wasnt much of a fix! I'm in the middle of a major rewrite of the plugin so getting to this is on the backburner. Leaving issue open.

Fixed for v 33