Bukkit

Short description about the bug/problem:
I haven't changed anything fro days in the shop and yet today it weirdly failed.

[05:09:42] [Server thread/INFO]: [BossShop] Loading data...
[05:09:42] [Server thread/ERROR]: Error occurred while enabling BossShop v2.1.0 (Is it up to date?)
java.lang.ArrayIndexOutOfBoundsException: 1
    at org.black_ixx.bossshop.managers.ItemStackCreator.createItemStack(ItemStackCreator.java:31) ~[?:?]
    at org.black_ixx.bossshop.managers.config.BSConfigShop.loadItem(BSConfigShop.java:165) ~[?:?]
    at org.black_ixx.bossshop.managers.config.BSConfigShop.loadItems(BSConfigShop.java:197) ~[?:?]
    at org.black_ixx.bossshop.managers.config.BSConfigShop.<init>(BSConfigShop.java:73) ~[?:?]
    at org.black_ixx.bossshop.core.BSShops.loadShop(BSShops.java:64) ~[?:?]
    at org.black_ixx.bossshop.core.BSShops.<init>(BSShops.java:31) ~[?:?]
    at org.black_ixx.bossshop.managers.ClassManager.<init>(ClassManager.java:44) ~[?:?]
    at org.black_ixx.bossshop.BossShop.onEnable(BossShop.java:29) ~[?:?]
    at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:321) ~[spigot.jar:git-Spigot-d97e08b-880a532]
    at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:340) [spigot.jar:git-Spigot-d97e08b-880a532]
    at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:405) [spigot.jar:git-Spigot-d97e08b-880a532]
    at org.bukkit.craftbukkit.v1_8_R3.CraftServer.loadPlugin(CraftServer.java:357) [spigot.jar:git-Spigot-d97e08b-880a532]
    at org.bukkit.craftbukkit.v1_8_R3.CraftServer.enablePlugins(CraftServer.java:317) [spigot.jar:git-Spigot-d97e08b-880a532]
    at net.minecraft.server.v1_8_R3.MinecraftServer.s(MinecraftServer.java:414) [spigot.jar:git-Spigot-d97e08b-880a532]
    at net.minecraft.server.v1_8_R3.MinecraftServer.k(MinecraftServer.java:378) [spigot.jar:git-Spigot-d97e08b-880a532]
    at net.minecraft.server.v1_8_R3.MinecraftServer.a(MinecraftServer.java:333) [spigot.jar:git-Spigot-d97e08b-880a532]
    at net.minecraft.server.v1_8_R3.DedicatedServer.init(DedicatedServer.java:263) [spigot.jar:git-Spigot-d97e08b-880a532]
    at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:524) [spigot.jar:git-Spigot-d97e08b-880a532]
    at java.lang.Thread.run(Thread.java:745) [?:1.7.0_79]

What steps will reproduce the problem?
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What is the expected output? What do you see instead?

What version of BossShop are you using?

Do you have an error log of what happened? Please paste it at pastie.org!

Please provide any additional information below.