[00:42:56 ERROR]: Error occurred while enabling GadgetsMenu v4.3.6 (Is it up to date?)
java.lang.NumberFormatException: For input string: "DIAMOND_HELMET"
        at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65) ~[?
201]
        at java.lang.Integer.parseInt(Integer.java:580) ~[?:1.8.0_201]
        at java.lang.Integer.valueOf(Integer.java:766) ~[?:1.8.0_201]
        at com.yapzhenyie.GadgetsMenu.configuration.ConfigVersionManager.updateMainMenuFileM
(ConfigVersionManager.java:461) ~[?:?]
        at com.yapzhenyie.GadgetsMenu.configuration.ConfigVersionManager.updateConfig(Config
Manager.java:123) ~[?:?]
        at com.yapzhenyie.GadgetsMenu.GadgetsMenu.setupConfig(GadgetsMenu.java:452) ~[?:?]
        at com.yapzhenyie.GadgetsMenu.GadgetsMenu.onEnable(GadgetsMenu.java:173) ~[?:?]
        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:321) ~[spigot_server
t-Spigot-21fe707-e1ebe52]
        at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:340) [
server.jar:git-Spigot-21fe707-e1ebe52]
        at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:405)
_server.jar:git-Spigot-21fe707-e1ebe52]
        at org.bukkit.craftbukkit.v1_8_R3.CraftServer.loadPlugin(CraftServer.java:357) [spig
er.jar:git-Spigot-21fe707-e1ebe52]
        at org.bukkit.craftbukkit.v1_8_R3.CraftServer.enablePlugins(CraftServer.java:317) [s
erver.jar:git-Spigot-21fe707-e1ebe52]
        at net.minecraft.server.v1_8_R3.MinecraftServer.s(MinecraftServer.java:414) [spigot_
jar:git-Spigot-21fe707-e1ebe52]
        at net.minecraft.server.v1_8_R3.MinecraftServer.k(MinecraftServer.java:378) [spigot_
jar:git-Spigot-21fe707-e1ebe52]
        at net.minecraft.server.v1_8_R3.MinecraftServer.a(MinecraftServer.java:333) [spigot_
jar:git-Spigot-21fe707-e1ebe52]
        at net.minecraft.server.v1_8_R3.DedicatedServer.init(DedicatedServer.java:263) [spig
er.jar:git-Spigot-21fe707-e1ebe52]
        at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:525) [spigo
r.jar:git-Spigot-21fe707-e1ebe52]
        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_201]