Console constantly getting spammed with this:

[jcdesimp]

My console gets spammed with this CONSTANTLY!!! like every 5 seconds. The new piston prevention appears to be causing it:

[02:53:41 ERROR]: Could not pass event BlockPistonExtendEvent to InfinitePlots v0.9-SNAPSHOT
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:294) ~[craftbukkit.jar:git-Spigot-1449]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[craftbukkit.jar:git-Spigot-1449]
        at org.bukkit.plugin.TimedRegisteredListener.callEvent(TimedRegisteredListener.java:47) ~[craftbukkit.jar:git-Spigot-1449]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [craftbukkit.jar:git-Spigot-1449]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [craftbukkit.jar:git-Spigot-1449]
        at net.minecraft.server.v1_7_R3.BlockPiston.e(BlockPiston.java:69) [craftbukkit.jar:git-Spigot-1449]
        at net.minecraft.server.v1_7_R3.BlockPiston.doPhysics(BlockPiston.java:46) [craftbukkit.jar:git-Spigot-1449]
        at net.minecraft.server.v1_7_R3.World.e(World.java:625) [craftbukkit.jar:git-Spigot-1449]
        at net.minecraft.server.v1_7_R3.BlockDiodeAbstract.e(BlockDiodeAbstract.java:185) [craftbukkit.jar:git-Spigot-1449]
        at net.minecraft.server.v1_7_R3.BlockDiodeAbstract.onPlace(BlockDiodeAbstract.java:173) [craftbukkit.jar:git-Spigot-1449]
        at net.minecraft.server.v1_7_R3.Chunk.a(Chunk.java:497) [craftbukkit.jar:git-Spigot-1449]
        at net.minecraft.server.v1_7_R3.World.setTypeAndData(World.java:383) [craftbukkit.jar:git-Spigot-1449]
        at net.minecraft.server.v1_7_R3.BlockDiodeAbstract.a(BlockDiodeAbstract.java:50) [craftbukkit.jar:git-Spigot-1449]
        at net.minecraft.server.v1_7_R3.WorldServer.a(WorldServer.java:568) [craftbukkit.jar:git-Spigot-1449]
        at net.minecraft.server.v1_7_R3.WorldServer.doTick(WorldServer.java:211) [craftbukkit.jar:git-Spigot-1449]
        at net.minecraft.server.v1_7_R3.MinecraftServer.v(MinecraftServer.java:672) [craftbukkit.jar:git-Spigot-1449]
        at net.minecraft.server.v1_7_R3.DedicatedServer.v(DedicatedServer.java:283) [craftbukkit.jar:git-Spigot-1449]
        at net.minecraft.server.v1_7_R3.MinecraftServer.u(MinecraftServer.java:576) [craftbukkit.jar:git-Spigot-1449]
        at net.minecraft.server.v1_7_R3.MinecraftServer.run(MinecraftServer.java:482) [craftbukkit.jar:git-Spigot-1449]
        at net.minecraft.server.v1_7_R3.ThreadServerApplication.run(SourceFile:628) [craftbukkit.jar:git-Spigot-1449]
Caused by: java.lang.IllegalArgumentException: Location is not in a plot world
        at uk.co.jacekk.bukkit.infiniteplots.plot.PlotLocation.fromWorldLocation(PlotLocation.java:66) ~[?:?]
        at uk.co.jacekk.bukkit.infiniteplots.protection.BuildListener.onPistonExtend(BuildListener.java:89) ~[?:?]
        at sun.reflect.GeneratedMethodAccessor81.invoke(Unknown Source) ~[?:?]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.7.0_51]
        at java.lang.reflect.Method.invoke(Method.java:606) ~[?:1.7.0_51]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:292) ~[craftbukkit.jar:git-Spigot-1449]
        ... 19 more