---- Minecraft Crash Report ----
// Everything's going to plan. No, really, that was supposed to happen.

Time: 26/06/17 10:42
Description: Executing command block

java.lang.NullPointerException: Executing command block
	at net.minecraft.server.v1_12_R1.CommandBlockListenerAbstract.getSendCommandFeedback(CommandBlockListenerAbstract.java:313)
	at net.minecraft.server.v1_12_R1.CommandDispatcher.a(CommandDispatcher.java:87)
	at net.minecraft.server.v1_12_R1.CommandAbstract.a(SourceFile:673)
	at org.bukkit.craftbukkit.v1_12_R1.command.VanillaCommandWrapper.dispatchVanillaCommand(VanillaCommandWrapper.java:122)
	at net.minecraft.server.v1_12_R1.CommandBlockListenerAbstract.executeCommand(CommandBlockListenerAbstract.java:211)
	at net.minecraft.server.v1_12_R1.CommandBlockListenerAbstract.executeSafely(CommandBlockListenerAbstract.java:164)
	at net.minecraft.server.v1_12_R1.CommandBlockListenerAbstract.a(CommandBlockListenerAbstract.java:119)
	at net.minecraft.server.v1_12_R1.BlockCommand.a(BlockCommand.java:95)
	at net.minecraft.server.v1_12_R1.BlockCommand.b(BlockCommand.java:71)
	at net.minecraft.server.v1_12_R1.WorldServer.a(WorldServer.java:770)
	at net.minecraft.server.v1_12_R1.WorldServer.doTick(WorldServer.java:308)
	at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:798)
	at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:405)
	at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:678)
	at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:576)
	at java.lang.Thread.run(Unknown Source)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: Server thread
Stacktrace:
	at net.minecraft.server.v1_12_R1.CommandBlockListenerAbstract.getSendCommandFeedback(CommandBlockListenerAbstract.java:313)
	at net.minecraft.server.v1_12_R1.CommandDispatcher.a(CommandDispatcher.java:87)
	at net.minecraft.server.v1_12_R1.CommandAbstract.a(SourceFile:673)
	at org.bukkit.craftbukkit.v1_12_R1.command.VanillaCommandWrapper.dispatchVanillaCommand(VanillaCommandWrapper.java:122)
	at net.minecraft.server.v1_12_R1.CommandBlockListenerAbstract.executeCommand(CommandBlockListenerAbstract.java:211)
	at net.minecraft.server.v1_12_R1.CommandBlockListenerAbstract.executeSafely(CommandBlockListenerAbstract.java:164)

-- Command to be executed --
Details:
	Command: /scoreboard players test count MobArenaRndClck7 100
	Name: @
Stacktrace:
	at net.minecraft.server.v1_12_R1.CommandBlockListenerAbstract.a(CommandBlockListenerAbstract.java:119)
	at net.minecraft.server.v1_12_R1.BlockCommand.a(BlockCommand.java:95)
	at net.minecraft.server.v1_12_R1.BlockCommand.b(BlockCommand.java:71)

-- Block being ticked --
Details:
	Block: minecraft:repeating_command_block[conditional=false,facing=up]
	Block location: World: (-356,1,554), Chunk: (at 12,0,10 in -23,34; contains blocks -368,0,544 to -353,255,559), Region: (-1,1; contains chunks -32,32 to -1,63, blocks -512,0,512 to -1,255,1023)
Stacktrace:
	at net.minecraft.server.v1_12_R1.WorldServer.a(WorldServer.java:770)
	at net.minecraft.server.v1_12_R1.WorldServer.doTick(WorldServer.java:308)

-- Affected level --
Details:
	Level name: world