[18:31:15] [Server thread/INFO]: [ShopGUIPlus] Enabling ShopGUIPlus v1.19.1
[18:31:16] [Server thread/INFO]: [ShopGUIPlus] Permissions support enabled.
[18:31:16] [Server thread/INFO]: [SilkSpawners] WorldGuard was found and support is enabled
[18:31:16] [Server thread/INFO]: [SilkSpawners] Loading support for v1_8_R1
[18:31:16] [Server thread/INFO]: [ShopGUIPlus] SilkSpawners support enabled.
[18:31:16] [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) ~[spigotmc-1.8-R0.1.jar:git-Spigot-59b08be-0899683]
at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:335) [spigotmc-1.8-R0.1.jar:git-Spigot-59b08be-0899683]
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:405) [spigotmc-1.8-R0.1.jar:git-Spigot-59b08be-0899683]
at org.bukkit.craftbukkit.v1_8_R1.CraftServer.loadPlugin(CraftServer.java:355) [spigotmc-1.8-R0.1.jar:git-Spigot-59b08be-0899683]
at org.bukkit.craftbukkit.v1_8_R1.CraftServer.enablePlugins(CraftServer.java:315) [spigotmc-1.8-R0.1.jar:git-Spigot-59b08be-0899683]
at net.minecraft.server.v1_8_R1.MinecraftServer.q(MinecraftServer.java:402) [spigotmc-1.8-R0.1.jar:git-Spigot-59b08be-0899683]
at net.minecraft.server.v1_8_R1.MinecraftServer.k(MinecraftServer.java:370) [spigotmc-1.8-R0.1.jar:git-Spigot-59b08be-0899683]
at net.minecraft.server.v1_8_R1.MinecraftServer.a(MinecraftServer.java:325) [spigotmc-1.8-R0.1.jar:git-Spigot-59b08be-0899683]
at net.minecraft.server.v1_8_R1.DedicatedServer.init(DedicatedServer.java:211) [spigotmc-1.8-R0.1.jar:git-Spigot-59b08be-0899683]
at net.minecraft.server.v1_8_R1.MinecraftServer.run(MinecraftServer.java:494) [spigotmc-1.8-R0.1.jar:git-Spigot-59b08be-0899683]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
or
https://pastebin.com/mj1jPpwg
Please Help Me !