> [15:27:32] [Server thread/ERROR]: Could not pass event PlayerInteractEvent to UltimateStacker v1.10.14
org.bukkit.event.EventException: null
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:320) ~[server.jar:git-Spigot-94af569-db98d54]
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70) ~[server.jar:git-Spigot-94af569-db98d54]
at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:529) ~[server.jar:git-Spigot-94af569-db98d54]
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:514) ~[server.jar:git-Spigot-94af569-db98d54]
at org.bukkit.craftbukkit.v1_14_R1.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:437) ~[server.jar:git-Spigot-94af569-db98d54]
at net.minecraft.server.v1_14_R1.PlayerInteractManager.a(PlayerInteractManager.java:432) ~[server.jar:git-Spigot-94af569-db98d54]
at net.minecraft.server.v1_14_R1.PlayerConnection.a(PlayerConnection.java:1238) ~[server.jar:git-Spigot-94af569-db98d54]
at net.minecraft.server.v1_14_R1.PacketPlayInUseItem.a(PacketPlayInUseItem.java:27) ~[server.jar:git-Spigot-94af569-db98d54]
at net.minecraft.server.v1_14_R1.PacketPlayInUseItem.a(PacketPlayInUseItem.java:1) ~[server.jar:git-Spigot-94af569-db98d54]
at net.minecraft.server.v1_14_R1.PlayerConnectionUtils.lambda$0(PlayerConnectionUtils.java:19) ~[server.jar:git-Spigot-94af569-db98d54]
at net.minecraft.server.v1_14_R1.TickTask.run(SourceFile:18) [server.jar:git-Spigot-94af569-db98d54]
at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.executeTask(SourceFile:144) [server.jar:git-Spigot-94af569-db98d54]
at net.minecraft.server.v1_14_R1.IAsyncTaskHandlerReentrant.executeTask(SourceFile:23) [server.jar:git-Spigot-94af569-db98d54]
at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.executeNext(SourceFile:118) [server.jar:git-Spigot-94af569-db98d54]
at net.minecraft.server.v1_14_R1.MinecraftServer.aX(MinecraftServer.java:909) [server.jar:git-Spigot-94af569-db98d54]
at net.minecraft.server.v1_14_R1.MinecraftServer.executeNext(MinecraftServer.java:902) [server.jar:git-Spigot-94af569-db98d54]
at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.awaitTasks(SourceFile:127) [server.jar:git-Spigot-94af569-db98d54]
at net.minecraft.server.v1_14_R1.MinecraftServer.sleepForTick(MinecraftServer.java:886) [server.jar:git-Spigot-94af569-db98d54]
at net.minecraft.server.v1_14_R1.MinecraftServer.run(MinecraftServer.java:819) [server.jar:git-Spigot-94af569-db98d54]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_212]
Caused by: java.lang.IllegalArgumentException: No enum constant org.bukkit.entity.EntityType.ZOMBIE_PIGMAN
at java.lang.Enum.valueOf(Enum.java:238) ~[?:1.8.0_212]
at org.bukkit.entity.EntityType.valueOf(EntityType.java:1) ~[server.jar:git-Spigot-94af569-db98d54]
at com.songoda.ultimatestacker.listeners.SpawnerListeners.PlayerInteractEventEgg(SpawnerListeners.java:85) ~[?:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_212]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_212]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_212]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_212]
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:316) ~[server.jar:git-Spigot-94af569-db98d54]
... 19 more