[19:38:07 ERROR]: Error occurred while enabling SkriptPlus v1.4.2 (Is it up to date?)
java.lang.IllegalArgumentException: Can't register org.bukkit.scoreboard.DisplaySlot with the code name displayslot because that name is already used by types.displayslot
        at ch.njol.skript.registrations.Classes.registerClass(Classes.java:88) ~[?:?]
        at com.w00tmast3r.skriptaddon.skaddonlib.util.SimpleEnumClassInfo.register(SimpleEnumClassInfo.java:35) ~[?:?]
        at com.w00tmast3r.skriptaddon.skriptplus.elements.Types.run(Types.java:16) ~[?:?]
        at com.w00tmast3r.skriptaddon.skaddonlib.development.registration.RegistrationManager.registerClasses(RegistrationManager.java:103) ~[?:?]
        at com.w00tmast3r.skriptaddon.skriptplus.SkriptPlus.onEnable(SkriptPlus.java:59) ~[?:?]
        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:250) ~[minecraft_server.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2978jnks]
        at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:350) [minecraft_server.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2978jnks]
        at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:384) [minecraft_server.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2978jnks]
        at org.bukkit.craftbukkit.v1_7_R1.CraftServer.loadPlugin(CraftServer.java:298) [minecraft_server.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2978jnks]
        at org.bukkit.craftbukkit.v1_7_R1.CraftServer.enablePlugins(CraftServer.java:280) [minecraft_server.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2978jnks]
        at org.bukkit.craftbukkit.v1_7_R1.CraftServer.reload(CraftServer.java:630) [minecraft_server.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2978jnks]
        at org.bukkit.Bukkit.reload(Bukkit.java:279) [minecraft_server.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2978jnks]
        at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:23) [minecraft_server.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2978jnks]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:196) [minecraft_server.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2978jnks]
        at org.bukkit.craftbukkit.v1_7_R1.CraftServer.dispatchCommand(CraftServer.java:542) [minecraft_server.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2978jnks]
        at org.bukkit.craftbukkit.v1_7_R1.CraftServer.dispatchServerCommand(CraftServer.java:529) [minecraft_server.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2978jnks]
        at net.minecraft.server.v1_7_R1.DedicatedServer.aw(DedicatedServer.java:286) [minecraft_server.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2978jnks]
        at net.minecraft.server.v1_7_R1.DedicatedServer.u(DedicatedServer.java:251) [minecraft_server.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2978jnks]
        at net.minecraft.server.v1_7_R1.MinecraftServer.t(MinecraftServer.java:545) [minecraft_server.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2978jnks]
        at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:457) [minecraft_server.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2978jnks]
        at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [minecraft_server.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2978jnks]