[11:51:41] [Server thread/INFO]: chrisk123999 issued server command: /bossshop
[11:51:41] [Server thread/ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'bossshop' in plugin BossShop v1.6.6
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[craftbukkit.jar:git-Spigot-1192]
	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:192) ~[craftbukkit.jar:git-Spigot-1192]
	at org.bukkit.craftbukkit.v1_7_R1.CraftServer.dispatchCommand(CraftServer.java:546) ~[craftbukkit.jar:git-Spigot-1192]
	at net.minecraft.server.v1_7_R1.PlayerConnection.handleCommand(PlayerConnection.java:937) [craftbukkit.jar:git-Spigot-1192]
	at net.minecraft.server.v1_7_R1.PlayerConnection.a(PlayerConnection.java:812) [craftbukkit.jar:git-Spigot-1192]
	at net.minecraft.server.v1_7_R1.PacketPlayInChat.a(PacketPlayInChat.java:28) [craftbukkit.jar:git-Spigot-1192]
	at net.minecraft.server.v1_7_R1.PacketPlayInChat.handle(PacketPlayInChat.java:65) [craftbukkit.jar:git-Spigot-1192]
	at net.minecraft.server.v1_7_R1.NetworkManager.a(NetworkManager.java:147) [craftbukkit.jar:git-Spigot-1192]
	at net.minecraft.server.v1_7_R1.ServerConnection.c(SourceFile:134) [craftbukkit.jar:git-Spigot-1192]
	at net.minecraft.server.v1_7_R1.MinecraftServer.u(MinecraftServer.java:651) [craftbukkit.jar:git-Spigot-1192]
	at net.minecraft.server.v1_7_R1.DedicatedServer.u(DedicatedServer.java:259) [craftbukkit.jar:git-Spigot-1192]
	at net.minecraft.server.v1_7_R1.MinecraftServer.t(MinecraftServer.java:534) [craftbukkit.jar:git-Spigot-1192]
	at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:446) [craftbukkit.jar:git-Spigot-1192]
	at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [craftbukkit.jar:git-Spigot-1192]
Caused by: java.lang.NullPointerException
	at org.black_ixx.bossshop.managers.ShopCustomizer.transformInventory(ShopCustomizer.java:54) ~[?:?]
	at org.black_ixx.bossshop.core.BSShops.openShop(BSShops.java:79) ~[?:?]
	at org.black_ixx.bossshop.core.BSShops.openShop(BSShops.java:68) ~[?:?]
	at org.black_ixx.bossshop.managers.CommandManager.onCommand(CommandManager.java:170) ~[?:?]
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[craftbukkit.jar:git-Spigot-1192]
	... 13 more