[23:23:42] [Server thread/INFO]: Spacekid27 fell from a high place
[23:24:30] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 5571ms behind, skipping 111 tick(s)
[23:24:30] [Server thread/FATAL]: Error executing task
java.util.concurrent.ExecutionException: java.lang.NullPointerException
	at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[?:1.8.0_101]
	at java.util.concurrent.FutureTask.get(FutureTask.java:192) ~[?:1.8.0_101]
	at net.minecraft.util.Util.func_181617_a(SourceFile:45) [g.class:?]
	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:660) [MinecraftServer.class:?]
	at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:344) [ko.class:?]
	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:605) [MinecraftServer.class:?]
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:481) [MinecraftServer.class:?]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_101]
Caused by: java.lang.NullPointerException
	at net.minecraft.entity.player.EntityPlayerMP.restorePacketItem(EntityPlayerMP.java:788) ~[lf.class:?]
	at net.minecraft.network.NetHandlerPlayServer.func_147340_a(NetHandlerPlayServer.java:835) ~[lm.class:?]
	at net.minecraft.network.play.client.C02PacketUseEntity.func_148833_a(SourceFile:52) ~[in.class:?]
	at net.minecraft.network.play.client.C02PacketUseEntity.func_148833_a(SourceFile:11) ~[in.class:?]
	at org.spongepowered.common.network.PacketUtil.onProcessPacket(PacketUtil.java:121) ~[PacketUtil.class:1.8.9-1890-4.2.0-BETA-1693]
	at net.minecraft.network.PacketThreadUtil$1.redirect$onProcessPacket$0(SourceFile:39) ~[fh$1.class:?]
	at net.minecraft.network.PacketThreadUtil$1.run(SourceFile:13) ~[fh$1.class:?]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_101]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_101]
	at net.minecraft.util.Util.func_181617_a(SourceFile:44) ~[g.class:?]
	... 5 more