ItemCollector error upon reloading config

[19:34:37 ERROR]: [ItemCollector] [ACF] Exception in command: itemcollecter reload
[19:34:37 ERROR]: [ItemCollector] [ACF] java.lang.reflect.InvocationTargetException
[19:34:37 ERROR]: [ItemCollector] [ACF]         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[19:34:37 ERROR]: [ItemCollector] [ACF]         at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
[19:34:37 ERROR]: [ItemCollector] [ACF]         at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
[19:34:37 ERROR]: [ItemCollector] [ACF]         at java.lang.reflect.Method.invoke(Unknown Source)
[19:34:37 ERROR]: [ItemCollector] [ACF]         at dev.mrshawn.acf.RegisteredCommand.invoke(RegisteredCommand.java:152)
[19:34:37 ERROR]: [ItemCollector] [ACF]         at dev.mrshawn.acf.BaseCommand.executeCommand(BaseCommand.java:576)
[19:34:37 ERROR]: [ItemCollector] [ACF]         at dev.mrshawn.acf.BaseCommand.execute(BaseCommand.java:512)
[19:34:37 ERROR]: [ItemCollector] [ACF]         at dev.mrshawn.acf.RootCommand.execute(RootCommand.java:99)
[19:34:37 ERROR]: [ItemCollector] [ACF]         at dev.mrshawn.acf.BukkitRootCommand.execute(BukkitRootCommand.java:79)
[19:34:37 ERROR]: [ItemCollector] [ACF]         at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:159)
[19:34:37 ERROR]: [ItemCollector] [ACF]         at org.bukkit.craftbukkit.v1_15_R1.CraftServer.dispatchCommand(CraftServer.java:742)
[19:34:37 ERROR]: [ItemCollector] [ACF]         at net.minecraft.server.v1_15_R1.PlayerConnection.handleCommand(PlayerConnection.java:1820)
[19:34:37 ERROR]: [ItemCollector] [ACF]         at net.minecraft.server.v1_15_R1.PlayerConnection.a(PlayerConnection.java:1628)
[19:34:37 ERROR]: [ItemCollector] [ACF]         at net.minecraft.server.v1_15_R1.PacketPlayInChat.a(PacketPlayInChat.java:47)
[19:34:37 ERROR]: [ItemCollector] [ACF]         at net.minecraft.server.v1_15_R1.PacketPlayInChat.a(PacketPlayInChat.java:5)
[19:34:37 ERROR]: [ItemCollector] [ACF]         at net.minecraft.server.v1_15_R1.PlayerConnectionUtils.lambda$ensureMainThread$0(PlayerConnectionUtils.java:23)
[19:34:37 ERROR]: [ItemCollector] [ACF]         at net.minecraft.server.v1_15_R1.TickTask.run(SourceFile:18)
[19:34:37 ERROR]: [ItemCollector] [ACF]         at net.minecraft.server.v1_15_R1.IAsyncTaskHandler.executeTask(IAsyncTaskHandler.java:136)
[19:34:37 ERROR]: [ItemCollector] [ACF]         at net.minecraft.server.v1_15_R1.IAsyncTaskHandlerReentrant.executeTask(SourceFile:23)
[19:34:37 ERROR]: [ItemCollector] [ACF]         at net.minecraft.server.v1_15_R1.IAsyncTaskHandler.executeNext(IAsyncTaskHandler.java:109)
[19:34:37 ERROR]: [ItemCollector] [ACF]         at net.minecraft.server.v1_15_R1.MinecraftServer.ba(MinecraftServer.java:1038)
[19:34:37 ERROR]: [ItemCollector] [ACF]         at net.minecraft.server.v1_15_R1.MinecraftServer.executeNext(MinecraftServer.java:1031)
[19:34:37 ERROR]: [ItemCollector] [ACF]         at net.minecraft.server.v1_15_R1.IAsyncTaskHandler.executeAll(IAsyncTaskHandler.java:95)
[19:34:37 ERROR]: [ItemCollector] [ACF]         at net.minecraft.server.v1_15_R1.MinecraftServer.a(MinecraftServer.java:1172)
[19:34:37 ERROR]: [ItemCollector] [ACF]         at net.minecraft.server.v1_15_R1.MinecraftServer.run(MinecraftServer.java:934)
[19:34:37 ERROR]: [ItemCollector] [ACF]         at java.lang.Thread.run(Unknown Source)
[19:34:37 ERROR]: [ItemCollector] [ACF] Caused by: java.lang.ArrayIndexOutOfBoundsException: 1
[19:34:37 ERROR]: [ItemCollector] [ACF]         at dev.mrshawn.itemcollector.commands.ItemCollectorCMD.onCheck(ItemCollectorCMD.java:64)
[19:34:37 ERROR]: [ItemCollector] [ACF]         ... 26 more