---- Minecraft Crash Report ----
// You should try our sister game, Minceraft!

Time: 3/10/17 9:38 PM
Description: Exception in server tick loop

java.util.ConcurrentModificationException
	at java.util.HashMap$HashIterator.nextNode(Unknown Source)
	at java.util.HashMap$KeyIterator.next(Unknown Source)
	at net.minecraft.server.v1_9_R2.EntityTracker.updatePlayers(EntityTracker.java:176)
	at net.minecraft.server.v1_9_R2.MinecraftServer.D(MinecraftServer.java:814)
	at net.minecraft.server.v1_9_R2.DedicatedServer.D(DedicatedServer.java:399)
	at net.minecraft.server.v1_9_R2.MinecraftServer.C(MinecraftServer.java:665)
	at net.minecraft.server.v1_9_R2.MinecraftServer.run(MinecraftServer.java:564)
	at java.lang.Thread.run(Unknown Source)


A detailed w....