iltimatetimber

[05:59:19 ERROR]: Could not pass event BlockBreakEvent to UltimateTimber v1.0.11
org.bukkit.event.EventException: null
        at org.bukkit.plugin.EventExecutor$2.execute(EventExecutor.java:72) ~[patched_1.13.2.jar:git-Paper-470]
        at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:78) ~[patched_1.13.2.jar:git-Paper-470]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[patched_1.13.2.jar:git-Paper-470]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:513) ~[patched_1.13.2.jar:git-Paper-470]
        at net.minecraft.server.v1_13_R2.PlayerInteractManager.breakBlock(PlayerInteractManager.java:299) ~[patched_1.13.2.jar:git-Paper-470]
        at net.minecraft.server.v1_13_R2.PlayerInteractManager.a(PlayerInteractManager.java:226) ~[patched_1.13.2.jar:git-Paper-470]
        at net.minecraft.server.v1_13_R2.PlayerConnection.a(PlayerConnection.java:1297) ~[patched_1.13.2.jar:git-Paper-470]
        at net.minecraft.server.v1_13_R2.PacketPlayInBlockDig.a(SourceFile:40) ~[patched_1.13.2.jar:git-Paper-470]
        at net.minecraft.server.v1_13_R2.PacketPlayInBlockDig.a(SourceFile:10) ~[patched_1.13.2.jar:git-Paper-470]
        at net.minecraft.server.v1_13_R2.PlayerConnectionUtils.lambda$ensureMainThread$0(PlayerConnectionUtils.java:12) ~[patched_1.13.2.jar:git-Paper-470]
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_191]
        at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_191]
        at net.minecraft.server.v1_13_R2.SystemUtils.a(SystemUtils.java:109) ~[patched_1.13.2.jar:git-Paper-470]
        at net.minecraft.server.v1_13_R2.MinecraftServer.b(MinecraftServer.java:1016) ~[patched_1.13.2.jar:git-Paper-470]
        at net.minecraft.server.v1_13_R2.DedicatedServer.b(DedicatedServer.java:439) ~[patched_1.13.2.jar:git-Paper-470]
        at net.minecraft.server.v1_13_R2.MinecraftServer.a(MinecraftServer.java:943) ~[patched_1.13.2.jar:git-Paper-470]
        at net.minecraft.server.v1_13_R2.MinecraftServer.run(MinecraftServer.java:841) ~[patched_1.13.2.jar:git-Paper-470]
        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_191]
Caused by: java.lang.IllegalArgumentException: Cannot drop air
        at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.13.2.jar:git-Paper-470]
        at net.minecraft.server.v1_13_R2.EntityItem.setItemStack(EntityItem.java:409) ~[patched_1.13.2.jar:git-Paper-470]
        at net.minecraft.server.v1_13_R2.EntityItem.<init>(EntityItem.java:42) ~[patched_1.13.2.jar:git-Paper-470]
        at org.bukkit.craftbukkit.v1_13_R2.CraftWorld.dropItem(CraftWorld.java:326) ~[patched_1.13.2.jar:git-Paper-470]
        at com.songoda.ultimatetimber.treefall.TreeLoot.dropTreeLoot(TreeLoot.java:75) ~[?:?]
        at com.songoda.ultimatetimber.treefall.NoAnimationTreeDestroyer.destroyTree(NoAnimationTreeDestroyer.java:26) ~[?:?]
        at com.songoda.ultimatetimber.treefall.TreeFallListener.onTreeBreak(TreeFallListener.java:68) ~[?:?]
        at com.destroystokyo.paper.event.executor.asm.generated.GeneratedEventExecutor1294.execute(Unknown Source) ~[?:?]
        at org.bukkit.plugin.EventExecutor$2.execute(EventExecutor.java:70) ~[patched_1.13.2.jar:git-Paper-470]
        ... 17 more