[14:17:04 ERROR]: Could not pass event ItemSpawnEvent to HoloDrops v1.3
org.bukkit.event.EventException: null
at org.bukkit.plugin.EventExecutor$2.execute(EventExecutor.java:72) ~[patched_1.12.2.jar:git-Paper-1618]
at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:78) ~[patched_1.12.2.jar:git-Paper-1618]
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[patched_1.12.2.jar:git-Paper-1618]
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:513) ~[patched_1.12.2.jar:git-Paper-1618]
at org.bukkit.craftbukkit.v1_12_R1.event.CraftEventFactory.callItemSpawnEvent(CraftEventFactory.java:313) ~[patched_1.12.2.jar:git-Paper-1618]
at net.minecraft.server.v1_12_R1.World.addEntity(World.java:1138) ~[patched_1.12.2.jar:git-Paper-1618]
at net.minecraft.server.v1_12_R1.WorldServer.addEntity(WorldServer.java:1145) ~[patched_1.12.2.jar:git-Paper-1618]
at org.bukkit.craftbukkit.v1_12_R1.CraftWorld.dropItem(CraftWorld.java:340) ~[patched_1.12.2.jar:git-Paper-1618]
at org.bukkit.craftbukkit.v1_12_R1.CraftWorld.dropItemNaturally(CraftWorld.java:379) ~[patched_1.12.2.jar:git-Paper-1618]
at me.mrCookieSlime.PrisonUtils.MiningListener.handleMining(MiningListener.java:356) ~[?:?]
at me.mrCookieSlime.PrisonUtils.MiningListener.onBlockBreak(MiningListener.java:195) ~[?:?]
at com.destroystokyo.paper.event.executor.asm.generated.GeneratedEventExecutor536.execute(Unknown Source) ~[?:?]
at org.bukkit.plugin.EventExecutor$2.execute(EventExecutor.java:70) ~[patched_1.12.2.jar:git-Paper-1618]
at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:78) ~[patched_1.12.2.jar:git-Paper-1618]
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[patched_1.12.2.jar:git-Paper-1618]
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:513) ~[patched_1.12.2.jar:git-Paper-1618]
at net.minecraft.server.v1_12_R1.PlayerInteractManager.breakBlock(PlayerInteractManager.java:322) ~[patched_1.12.2.jar:git-Paper-1618]
at net.minecraft.server.v1_12_R1.PlayerInteractManager.a(PlayerInteractManager.java:193) ~[patched_1.12.2.jar:git-Paper-1618]
at net.minecraft.server.v1_12_R1.PlayerConnection.a(PlayerConnection.java:934) ~[patched_1.12.2.jar:git-Paper-1618]
at net.minecraft.server.v1_12_R1.PacketPlayInBlockDig.a(SourceFile:40) ~[patched_1.12.2.jar:git-Paper-1618]
at net.minecraft.server.v1_12_R1.PacketPlayInBlockDig.a(SourceFile:10) ~[patched_1.12.2.jar:git-Paper-1618]
at net.minecraft.server.v1_12_R1.PlayerConnectionUtils.lambda$ensureMainThread$0(PlayerConnectionUtils.java:14) ~[patched_1.12.2.jar:git-Paper-1618]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_212]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_212]
at net.minecraft.server.v1_12_R1.SystemUtils.a(SourceFile:46) ~[patched_1.12.2.jar:git-Paper-1618]
at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:850) ~[patched_1.12.2.jar:git-Paper-1618]
at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:423) ~[patched_1.12.2.jar:git-Paper-1618]
at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:774) ~[patched_1.12.2.jar:git-Paper-1618]
at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:666) ~[patched_1.12.2.jar:git-Paper-1618]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_212]
Caused by: java.lang.IllegalArgumentException: No enum constant org.bukkit.Material.ACACIA_BOAT
at java.lang.Enum.valueOf(Enum.java:238) ~[?:1.8.0_212]
at org.bukkit.Material.valueOf(Material.java:71) ~[patched_1.12.2.jar:git-Paper-1618]
at me.fsml.holodrops.events.SpawnEvent.pickName(SpawnEvent.java:36) ~[?:?]
at me.fsml.holodrops.events.SpawnEvent.spawnItem(SpawnEvent.java:17) ~[?:?]
at com.destroystokyo.paper.event.executor.asm.generated.GeneratedEventExecutor134.execute(Unknown Source) ~[?:?]
at org.bukkit.plugin.EventExecutor$2.execute(EventExecutor.java:70) ~[patched_1.12.2.jar:git-Paper-1618]
... 29 more