Ashen King summon using the crown causes a crash on servers

[vianZIP]

[03:22:59] [Server thread/ERROR] [FML]: An Entity type com.example.structure.entity.endking.friendly.EntityFriendKing has thrown an exception trying to write state. It will not persist. Report this to the mod author net.minecraft.util.ReportedException: Saving entity NBT at net.minecraft.entity.Entity.writeToNBT(Entity.java:1772) ~[vg.class:?] at net.minecraft.entity.Entity.writeToNBTOptional(Entity.java:1654) ~[vg.class:?] at net.minecraft.world.chunk.storage.AnvilChunkLoader.writeChunkToNBT(AnvilChunkLoader.java:362) [aye.class:?] at net.minecraft.world.chunk.storage.AnvilChunkLoader.saveChunk(AnvilChunkLoader.java:174) [aye.class:?] at net.minecraft.world.gen.ChunkProviderServer.saveChunkData(ChunkProviderServer.java:202) [on.class:?] at net.minecraft.world.gen.ChunkProviderServer.saveChunks(ChunkProviderServer.java:230) [on.class:?] at net.minecraft.world.WorldServer.saveAllChunks(WorldServer.java:1007) [oo.class:?] at net.minecraft.server.MinecraftServer.saveAllWorlds(MinecraftServer.java:408) [MinecraftServer.class:?] at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:691) [MinecraftServer.class:?] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526) [MinecraftServer.class:?] at java.lang.Thread.run(Thread.java:750) [?:1.8.0_422] Caused by: java.lang.NullPointerException at com.example.structure.entity.endking.EntityAbstractEndKing.writeEntityToNBT(EntityAbstractEndKing.java:130) ~[EntityAbstractEndKing.class:?] at net.minecraft.entity.Entity.writeToNBT(Entity.java:1743) ~[vg.class:?] ... 10 more can provide more information if needed

[Jboymercs]

yes if you could, please give the log or crash report file that has everything. helps with seeing the stacktrace. But thank you for reporting it!