[03:27:29] [Server thread/ERROR]: Error occurred while enabling ShopGUIPlus v1.19.1 (Is it up to date?)

java.lang.IllegalArgumentException

	at net.brcdev.shopgui.util.ItemUtils.loadItemStackFromConfig(ItemUtils.java:127) ~[?:?]

	at net.brcdev.shopgui.settings.MenuSettings.load(MenuSettings.java:71) ~[?:?]

	at net.brcdev.shopgui.settings.MenuSettings.<init>(MenuSettings.java:22) ~[?:?]

	at net.brcdev.shopgui.settings.MenuWithItemSettings.<init>(MenuWithItemSettings.java:14) ~[?:?]

	at net.brcdev.shopgui.config.Settings.load(Settings.java:368) ~[?:?]

	at net.brcdev.shopgui.config.Settings.setConfig(Settings.java:147) ~[?:?]

	at net.brcdev.shopgui.ShopGuiPlugin.load(ShopGuiPlugin.java:188) ~[?:?]

	at net.brcdev.shopgui.ShopGuiPlugin.onEnable(ShopGuiPlugin.java:146) ~[?:?]

	at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:321) ~[spigot-1.8.9.jar:git-Spigot-db6de12-07c3001]

	at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:340) [spigot-1.8.9.jar:git-Spigot-db6de12-07c3001]

	at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:405) [spigot-1.8.9.jar:git-Spigot-db6de12-07c3001]

	at org.bukkit.craftbukkit.v1_8_R3.CraftServer.loadPlugin(CraftServer.java:357) [spigot-1.8.9.jar:git-Spigot-db6de12-07c3001]

	at org.bukkit.craftbukkit.v1_8_R3.CraftServer.enablePlugins(CraftServer.java:317) [spigot-1.8.9.jar:git-Spigot-db6de12-07c3001]

	at org.bukkit.craftbukkit.v1_8_R3.CraftServer.reload(CraftServer.java:741) [spigot-1.8.9.jar:git-Spigot-db6de12-07c3001]

	at org.bukkit.Bukkit.reload(Bukkit.java:535) [spigot-1.8.9.jar:git-Spigot-db6de12-07c3001]

	at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:25) [spigot-1.8.9.jar:git-Spigot-db6de12-07c3001]

	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) [spigot-1.8.9.jar:git-Spigot-db6de12-07c3001]

	at org.bukkit.craftbukkit.v1_8_R3.CraftServer.dispatchCommand(CraftServer.java:641) [spigot-1.8.9.jar:git-Spigot-db6de12-07c3001]

	at net.minecraft.server.v1_8_R3.PlayerConnection.handleCommand(PlayerConnection.java:1162) [spigot-1.8.9.jar:git-Spigot-db6de12-07c3001]

	at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:997) [spigot-1.8.9.jar:git-Spigot-db6de12-07c3001]

	at net.minecraft.server.v1_8_R3.PacketPlayInChat.a(PacketPlayInChat.java:45) [spigot-1.8.9.jar:git-Spigot-db6de12-07c3001]

	at net.minecraft.server.v1_8_R3.PacketPlayInChat.a(PacketPlayInChat.java:1) [spigot-1.8.9.jar:git-Spigot-db6de12-07c3001]

	at net.minecraft.server.v1_8_R3.PlayerConnectionUtils$1.run(SourceFile:13) [spigot-1.8.9.jar:git-Spigot-db6de12-07c3001]

	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_72]

	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_72]

	at net.minecraft.server.v1_8_R3.SystemUtils.a(SourceFile:44) [spigot-1.8.9.jar:git-Spigot-db6de12-07c3001]

	at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:715) [spigot-1.8.9.jar:git-Spigot-db6de12-07c3001]

	at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot-1.8.9.jar:git-Spigot-db6de12-07c3001]

	at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot-1.8.9.jar:git-Spigot-db6de12-07c3001]

	at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot-1.8.9.jar:git-Spigot-db6de12-07c3001]

	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_72]