Hello. I recently installed 1.8 versio in my server and when some ones goes to close to a place i get this error Code: [12:44:34 ERROR]: Encountered an unexpected exception java.lang.NullPointerException at net.minecraft.server.v1_8_R1.TileEntitySkull$2.apply(TileEntitySkull.java:136) ~[spigot_vgbin.jar:git-Spigot-9a88a38-e2c4f20] at net.minecraft.server.v1_8_R1.TileEntitySkull$2.apply(TileEntitySkull.java:129) ~[spigot_vgbin.jar:git-Spigot-9a88a38-e2c4f20] at net.minecraft.server.v1_8_R1.TileEntitySkull.b(TileEntitySkull.java:153) ~[spigot_vgbin.jar:git-Spigot-9a88a38-e2c4f20] at net.minecraft.server.v1_8_R1.TileEntitySkull.e(TileEntitySkull.java:129) ~[spigot_vgbin.jar:git-Spigot-9a88a38-e2c4f20] at net.minecraft.server.v1_8_R1.TileEntitySkull.a(TileEntitySkull.java:96) ~[spigot_vgbin.jar:git-Spigot-9a88a38-e2c4f20] at net.minecraft.server.v1_8_R1.TileEntity.c(TileEntity.java:116) ~[spigot_vgbin.jar:git-Spigot-9a88a38-e2c4f20] at net.minecraft.server.v1_8_R1.ChunkRegionLoader.loadEntities(ChunkRegionLoader.java:438) ~[spigot_vgbin.jar:git-Spigot-9a88a38-e2c4f20] at org.bukkit.craftbukkit.v1_8_R1.chunkio.ChunkIOProvider.callStage2(ChunkIOProvider.java:37) ~[spigot_vgbin.jar:git-Spigot-9a88a38-e2c4f20] at org.bukkit.craftbukkit.v1_8_R1.chunkio.ChunkIOProvider.callStage2(ChunkIOProvider.java:13) ~[spigot_vgbin.jar:git-Spigot-9a88a38-e2c4f20] at org.bukkit.craftbukkit.v1_8_R1.util.AsynchronousExecutor$Task.finish(AsynchronousExecutor.java:188) ~[spigot_vgbin.jar:git-Spigot-9a88a38-e2c4f20] at org.bukkit.craftbukkit.v1_8_R1.util.AsynchronousExecutor.finishActive(AsynchronousExecutor.java:347) ~[spigot_vgbin.jar:git-Spigot-9a88a38-e2c4f20] at org.bukkit.craftbukkit.v1_8_R1.chunkio.ChunkIOExecutor.tick(ChunkIOExecutor.java:34) ~[spigot_vgbin.jar:git-Spigot-9a88a38-e2c4f20] at net.minecraft.server.v1_8_R1.MinecraftServer.z(MinecraftServer.java:705) ~[spigot_vgbin.jar:git-Spigot-9a88a38-e2c4f20] at net.minecraft.server.v1_8_R1.DedicatedServer.z(DedicatedServer.java:316) ~[spigot_vgbin.jar:git-Spigot-9a88a38-e2c4f20] at net.minecraft.server.v1_8_R1.MinecraftServer.y(MinecraftServer.java:623) ~[spigot_vgbin.jar:git-Spigot-9a88a38-e2c4f20] at net.minecraft.server.v1_8_R1.MinecraftServer.run(MinecraftServer.java:526) [spigot_vgbin.jar:git-Spigot-9a88a38-e2c4f20] at java.lang.Thread.run(Thread.java:724) [?:1.7.0_25] and the server crashes