[15:31:23] [Server thread/ERROR]: Could not pass event LeavesDecayEvent to OtherDrops v2.8b.582
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:310) ~[spigot.jar:git-Spigot-e6f93f4-d884ab3]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot.jar:git-Spigot-e6f93f4-d884ab3]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot.jar:git-Spigot-e6f93f4-d884ab3]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [spigot.jar:git-Spigot-e6f93f4-d884ab3]
	at net.minecraft.server.v1_9_R1.BlockLeaves.b(BlockLeaves.java:139) [spigot.jar:git-Spigot-e6f93f4-d884ab3]
	at net.minecraft.server.v1_9_R1.BlockLeaves.b(BlockLeaves.java:129) [spigot.jar:git-Spigot-e6f93f4-d884ab3]
	at net.minecraft.server.v1_9_R1.Block.a(Block.java:264) [spigot.jar:git-Spigot-e6f93f4-d884ab3]
	at net.minecraft.server.v1_9_R1.WorldServer.j(WorldServer.java:504) [spigot.jar:git-Spigot-e6f93f4-d884ab3]
	at net.minecraft.server.v1_9_R1.WorldServer.doTick(WorldServer.java:252) [spigot.jar:git-Spigot-e6f93f4-d884ab3]
	at net.minecraft.server.v1_9_R1.MinecraftServer.D(MinecraftServer.java:776) [spigot.jar:git-Spigot-e6f93f4-d884ab3]
	at net.minecraft.server.v1_9_R1.DedicatedServer.D(DedicatedServer.java:400) [spigot.jar:git-Spigot-e6f93f4-d884ab3]
	at net.minecraft.server.v1_9_R1.MinecraftServer.C(MinecraftServer.java:660) [spigot.jar:git-Spigot-e6f93f4-d884ab3]
	at net.minecraft.server.v1_9_R1.MinecraftServer.run(MinecraftServer.java:559) [spigot.jar:git-Spigot-e6f93f4-d884ab3]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_111]
Caused by: java.lang.IncompatibleClassChangeError: Found interface com.sk89q.worldguard.protection.ApplicableRegionSet, but class was expected
	at com.gmail.zariust.otherdrops.listener.OdBlockListener.checkWorldguardLeafDecayPermission(OdBlockListener.java:62) ~[?:?]
	at com.gmail.zariust.otherdrops.listener.OdBlockListener.onLeavesDecay(OdBlockListener.java:78) ~[?:?]
	at sun.reflect.GeneratedMethodAccessor816.invoke(Unknown Source) ~[?:?]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_111]
	at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_111]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[spigot.jar:git-Spigot-e6f93f4-d884ab3]
	... 13 more