[ERROR] Could not pass event ChunkUnloadEvent to WorldGuardExtraFlags v4.1.2

org.bukkit.event.EventException

at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[spigot1649.jar:git-PaperSpigot-43]

at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot1649.jar:git-PaperSpigot-43]

at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:509) [spigot1649.jar:git-PaperSpigot-43]

at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:494) [spigot1649.jar:git-PaperSpigot-43]

at net.minecraft.server.v1_7_R4.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:342) [spigot1649.jar:git-PaperSpigot-43]

at net.minecraft.server.v1_7_R4.WorldServer.doTick(WorldServer.java:196) [spigot1649.jar:git-PaperSpigot-43]

at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:745) [spigot1649.jar:git-PaperSpigot-43]

at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:307) [spigot1649.jar:git-PaperSpigot-43]

at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:638) [spigot1649.jar:git-PaperSpigot-43]

at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:544) [spigot1649.jar:git-PaperSpigot-43]

at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628) [spigot1649.jar:git-PaperSpigot-43]

Caused by: java.lang.NullPointerException

at net.goldtreeservers.worldguardextraflags.wg.wrappers.AbstractRegionManagerWrapper.getApplicableRegions(AbstractRegionManagerWrapper.java:28) ~[?:?]

at net.goldtreeservers.worldguardextraflags.wg.wrappers.v6.WorldGuardSixCommunicator.doUnloadChunkFlagCheck(WorldGuardSixCommunicator.java:107) ~[?:?]

at net.goldtreeservers.worldguardextraflags.listeners.WorldListener.onChunkUnloadEvent(WorldListener.java:34) ~[?:?]

at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source) ~[?:?]

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_192]

at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_192]

at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:298) ~[spigot1649.jar:git-PaperSpigot-43]

... 10 more