[05:51:36] [Server thread/ERROR]: "Silently" catching entity tracking error.
net.minecraft.server.v1_10_R1.ReportedException: Adding entity to track
	at net.minecraft.server.v1_10_R1.EntityTracker.addEntity(EntityTracker.java:141) [spigot.jar:git-Spigot-a9631d2-2239ff0]
	at net.minecraft.server.v1_10_R1.EntityTracker.track(EntityTracker.java:80) [spigot.jar:git-Spigot-a9631d2-2239ff0]
	at net.minecraft.server.v1_10_R1.WorldManager.a(WorldManager.java:19) [spigot.jar:git-Spigot-a9631d2-2239ff0]
	at net.minecraft.server.v1_10_R1.World.b(World.java:1028) [spigot.jar:git-Spigot-a9631d2-2239ff0]
	at net.minecraft.server.v1_10_R1.WorldServer.b(WorldServer.java:1126) [spigot.jar:git-Spigot-a9631d2-2239ff0]
	at net.minecraft.server.v1_10_R1.World.addEntity(World.java:1021) [spigot.jar:git-Spigot-a9631d2-2239ff0]
	at net.minecraft.server.v1_10_R1.ChunkRegionLoader.a(ChunkRegionLoader.java:514) [spigot.jar:git-Spigot-a9631d2-2239ff0]
	at net.minecraft.server.v1_10_R1.ChunkRegionLoader.a(ChunkRegionLoader.java:510) [spigot.jar:git-Spigot-a9631d2-2239ff0]
	at net.minecraft.server.v1_10_R1.ChunkRegionLoader.a(ChunkRegionLoader.java:521) [spigot.jar:git-Spigot-a9631d2-2239ff0]
	at net.minecraft.server.v1_10_R1.MobSpawnerAbstract.c(MobSpawnerAbstract.java:106) [spigot.jar:git-Spigot-a9631d2-2239ff0]
	at net.minecraft.server.v1_10_R1.TileEntityMobSpawner.E_(SourceFile:90) [spigot.jar:git-Spigot-a9631d2-2239ff0]
	at net.minecraft.server.v1_10_R1.World.tickEntities(World.java:1496) [spigot.jar:git-Spigot-a9631d2-2239ff0]
	at net.minecraft.server.v1_10_R1.WorldServer.tickEntities(WorldServer.java:632) [spigot.jar:git-Spigot-a9631d2-2239ff0]
	at net.minecraft.server.v1_10_R1.MinecraftServer.D(MinecraftServer.java:804) [spigot.jar:git-Spigot-a9631d2-2239ff0]
	at net.minecraft.server.v1_10_R1.DedicatedServer.D(DedicatedServer.java:399) [spigot.jar:git-Spigot-a9631d2-2239ff0]
	at net.minecraft.server.v1_10_R1.MinecraftServer.C(MinecraftServer.java:673) [spigot.jar:git-Spigot-a9631d2-2239ff0]
	at net.minecraft.server.v1_10_R1.MinecraftServer.run(MinecraftServer.java:572) [spigot.jar:git-Spigot-a9631d2-2239ff0]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_25]



	at net.minecraft.server.v1_10_R1.EntityTracker.addEntity(EntityTracker.java:108) ~[spigot.jar:git-Spigot-a9631d2-2239ff0]