[16:41:22] [Server thread/INFO]: premax issued server command: /home dom
[16:41:22] [Server thread/INFO]: FROM: X: -851 Y: 67 Z: -589 World: world; TO: X: -1383 Y: 19 Z: 1829 World: world; PLAYER: premax; HOME_NAME: dom
[16:41:23] [Server thread/ERROR]: Encountered an unexpected exception
java.util.ConcurrentModificationException
	at java.util.HashMap$HashIterator.nextNode(HashMap.java:1437) ~[?:1.8.0_121]
	at java.util.HashMap$KeyIterator.next(HashMap.java:1461) ~[?:1.8.0_121]
	at net.minecraft.server.v1_11_R1.EntityTracker.updatePlayers(EntityTracker.java:180) ~[patched_1.11.2.jar:git-Paper-1090]
	at net.minecraft.server.v1_11_R1.MinecraftServer.D(MinecraftServer.java:914) ~[patched_1.11.2.jar:git-Paper-1090]
	at net.minecraft.server.v1_11_R1.DedicatedServer.D(DedicatedServer.java:403) ~[patched_1.11.2.jar:git-Paper-1090]
	at net.minecraft.server.v1_11_R1.MinecraftServer.C(MinecraftServer.java:754) ~[patched_1.11.2.jar:git-Paper-1090]
	at net.minecraft.server.v1_11_R1.MinecraftServer.run(MinecraftServer.java:652) [patched_1.11.2.jar:git-Paper-1090]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_121]
[16:41:23] [Server thread/ERROR]: This crash report has been saved to: /home/xwarfare/./crash-reports/crash-2017-04-24_16.41.23-server.txt
[16:41:23] [Server thread/INFO]: Stopping server