00:05:24] [Server thread/FATAL]: Error executing task
java.util.concurrent.ExecutionException: java.lang.IllegalArgumentException: Cannot set property BlockStateInteger{name=damage, clazz=class java.lang.Integer, values=[0, 1, 2]} to 3 on block minecraft:anvil, it is not an allowed value
	at java.util.concurrent.FutureTask.report(Unknown Source) ~[?:1.8.0_45]
	at java.util.concurrent.FutureTask.get(Unknown Source) ~[?:1.8.0_45]
	at net.minecraft.server.v1_8_R3.SystemUtils.a(SourceFile:45) [server8.jar:git-Spigot-21fe707-e1ebe52]
	at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:715) [server8.jar:git-Spigot-21fe707-e1ebe52]
	at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [server8.jar:git-Spigot-21fe707-e1ebe52]
	at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [server8.jar:git-Spigot-21fe707-e1ebe52]
	at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [server8.jar:git-Spigot-21fe707-e1ebe52]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_45]
Caused by: java.lang.IllegalArgumentException: Cannot set property BlockStateInteger{name=damage, clazz=class java.lang.Integer, values=[0, 1, 2]} to 3 on block minecraft:anvil, it is not an allowed value
	at net.minecraft.server.v1_8_R3.BlockStateList$BlockData.set(SourceFile:124) ~[server8.jar:git-Spigot-21fe707-e1ebe52]
	at net.minecraft.server.v1_8_R3.BlockAnvil.fromLegacyData(BlockAnvil.java:63) ~[server8.jar:git-Spigot-21fe707-e1ebe52]
	at net.minecraft.server.v1_8_R3.Block.getPlacedState(Block.java:516) ~[server8.jar:git-Spigot-21fe707-e1ebe52]
	at net.minecraft.server.v1_8_R3.BlockAnvil.getPlacedState(BlockAnvil.java:28) ~[server8.jar:git-Spigot-21fe707-e1ebe52]
	at net.minecraft.server.v1_8_R3.ItemBlock.interactWith(SourceFile:50) ~[server8.jar:git-Spigot-21fe707-e1ebe52]
	at net.minecraft.server.v1_8_R3.ItemStack.placeItem(ItemStack.java:117) ~[server8.jar:git-Spigot-21fe707-e1ebe52]
	at net.minecraft.server.v1_8_R3.PlayerInteractManager.interact(PlayerInteractManager.java:503) ~[server8.jar:git-Spigot-21fe707-e1ebe52]
	at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:759) ~[server8.jar:git-Spigot-21fe707-e1ebe52]
	at net.minecraft.server.v1_8_R3.PacketPlayInBlockPlace.a(PacketPlayInBlockPlace.java:52) ~[server8.jar:git-Spigot-21fe707-e1ebe52]
	at net.minecraft.server.v1_8_R3.PacketPlayInBlockPlace.a(PacketPlayInBlockPlace.java:1) ~[server8.jar:git-Spigot-21fe707-e1ebe52]
	at net.minecraft.server.v1_8_R3.PlayerConnectionUtils$1.run(SourceFile:13) ~[server8.jar:git-Spigot-21fe707-e1ebe52]
	at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) ~[?:1.8.0_45]
	at java.util.concurrent.FutureTask.run(Unknown Source) ~[?:1.8.0_45]
	at net.minecraft.server.v1_8_R3.SystemUtils.a(SourceFile:44) ~[server8.jar:git-Spigot-21fe707-e1ebe52]
	... 5 more