Couldn't execute command for MaxiHuHe04: scoreboard players reset *
java.util.ConcurrentModificationException
	at java.util.HashMap$HashIterator.nextNode(HashMap.java:1429)
	at java.util.HashMap$KeyIterator.next(HashMap.java:1453)
	at pd.a(SourceFile:292)
	at pd.d(SourceFile:163)
	at pd$$Lambda$467/773934393.run(Unknown Source)
	at com.mojang.brigadier.CommandDispatcher.execute(CommandDispatcher.java:120)
	at com.mojang.brigadier.CommandDispatcher.execute(CommandDispatcher.java:77)
	at bn.a(SourceFile:184)
	at rf.c(SourceFile:868)
	at rf.a(SourceFile:855)
	at kq.a(SourceFile:37)
	at kq.a(SourceFile:9)
	at hi$1.run(SourceFile:13)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at i.a(SourceFile:137)
	at net.minecraft.server.MinecraftServer.w(SourceFile:636)
	at net.minecraft.server.MinecraftServer.v(SourceFile:592)
	at clm.v(SourceFile:152)
	at net.minecraft.server.MinecraftServer.run(SourceFile:497)
	at java.lang.Thread.run(Thread.java:745)