Hi.

When I put a spawner, i have a error message in my console (I use Silkspawners).

[Server thread/WARN]: Skipping BlockEntity with id
[00:55:58] [Server thread/ERROR]: Could not pass event BlockPlaceEvent to Essentials v2.0.1-b463
org.bukkit.event.EventException
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[spigot-1.11.jar:git-Spigot-d60de0a-a951a88]
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot-1.11.jar:git-Spigot-d60de0a-a951a88]
at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot-1.11.jar:git-Spigot-d60de0a-a951a88]
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [spigot-1.11.jar:git-Spigot-d60de0a-a951a88]
at org.bukkit.craftbukkit.v1_11_R1.event.CraftEventFactory.callBlockPlaceEvent(CraftEventFactory.java:146) [spigot-1.11.jar:git-Spigot-d60de0a-a951a88]
at net.minecraft.server.v1_11_R1.ItemStack.placeItem(ItemStack.java:186) [spigot-1.11.jar:git-Spigot-d60de0a-a951a88]
at net.minecraft.server.v1_11_R1.PlayerInteractManager.a(PlayerInteractManager.java:490) [spigot-1.11.jar:git-Spigot-d60de0a-a951a88]
at net.minecraft.server.v1_11_R1.PlayerConnection.a(PlayerConnection.java:897) [spigot-1.11.jar:git-Spigot-d60de0a-a951a88]
at net.minecraft.server.v1_11_R1.PacketPlayInUseItem.a(PacketPlayInUseItem.java:37) [spigot-1.11.jar:git-Spigot-d60de0a-a951a88]
at net.minecraft.server.v1_11_R1.PacketPlayInUseItem.a(PacketPlayInUseItem.java:1) [spigot-1.11.jar:git-Spigot-d60de0a-a951a88]
at net.minecraft.server.v1_11_R1.PlayerConnectionUtils$1.run(SourceFile:13) [spigot-1.11.jar:git-Spigot-d60de0a-a951a88]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_72]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_72]
at net.minecraft.server.v1_11_R1.SystemUtils.a(SourceFile:46) [spigot-1.11.jar:git-Spigot-d60de0a-a951a88]
at net.minecraft.server.v1_11_R1.MinecraftServer.D(MinecraftServer.java:739) [spigot-1.11.jar:git-Spigot-d60de0a-a951a88]
at net.minecraft.server.v1_11_R1.DedicatedServer.D(DedicatedServer.java:399) [spigot-1.11.jar:git-Spigot-d60de0a-a951a88]
at net.minecraft.server.v1_11_R1.MinecraftServer.C(MinecraftServer.java:675) [spigot-1.11.jar:git-Spigot-d60de0a-a951a88]
at net.minecraft.server.v1_11_R1.MinecraftServer.run(MinecraftServer.java:574) [spigot-1.11.jar:git-Spigot-d60de0a-a951a88]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_72]
Caused by: java.lang.NullPointerException
at org.bukkit.craftbukkit.v1_11_R1.block.CraftCreatureSpawner.getSpawnedType(CraftCreatureSpawner.java:27) ~[spigot-1.11.jar:git-Spigot-d60de0a-a951a88]
at net.ess3.nms.updatedmeta.BlockMetaSpawnerProvider.getEntityType(BlockMetaSpawnerProvider.java:25) ~[?:?]
at com.earth2me.essentials.EssentialsBlockListener.onBlockPlace(EssentialsBlockListener.java:39) ~[?:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_72]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_72]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_72]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_72]
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[spigot-1.11.jar:git-Spigot-d60de0a-a951a88]
... 18 more

What is the problem ?

Thanks for your help.
Julien.

That spawner probably has corrupt data. I'll add a nullcheck sometime.

Hi.

And what do I need to do ...

@julien1721 Apologies for than late response, but does this issue still occur?

Feel free to let us know if the issue still occurs. Closing since there has been no response for quite some time.