23:32:08 INFO]: Cloude_Lecaw issued server command: /cmi inv Noulex
[23:32:08 ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'cmi' in plugin CheckMyInventory v1.2.1
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[spigot-1.8.3.jar:git-Spigot-2ec6f06-7722428]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) ~[spigot-1.8.3.jar:git-Spigot-2ec6f06-7722428]
        at org.bukkit.craftbukkit.v1_8_R2.CraftServer.dispatchCommand(CraftServer.java:646) ~[spigot-1.8.3.jar:git-Spigot-2ec6f06-7722428]
        at net.minecraft.server.v1_8_R2.PlayerConnection.handleCommand(PlayerConnection.java:1139) [spigot-1.8.3.jar:git-Spigot-2ec6f06-7722428]
        at net.minecraft.server.v1_8_R2.PlayerConnection.chat(PlayerConnection.java:1055) [spigot-1.8.3.jar:git-Spigot-2ec6f06-7722428]
        at org.bukkit.craftbukkit.v1_8_R2.entity.CraftPlayer.chat(CraftPlayer.java:241) [spigot-1.8.3.jar:git-Spigot-2ec6f06-7722428]
        at gyurix.spigotlib.Main$AsyncCommandExecutionAvoid.run(Main.java:145) [SpigotLib_1.2.0-Build4.jar:?]
        at org.bukkit.craftbukkit.v1_8_R2.scheduler.CraftTask.run(CraftTask.java:71) [spigot-1.8.3.jar:git-Spigot-2ec6f06-7722428]
        at org.bukkit.craftbukkit.v1_8_R2.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:350) [spigot-1.8.3.jar:git-Spigot-2ec6f06-7722428]
        at net.minecraft.server.v1_8_R2.MinecraftServer.A(MinecraftServer.java:720) [spigot-1.8.3.jar:git-Spigot-2ec6f06-7722428]
        at net.minecraft.server.v1_8_R2.DedicatedServer.A(DedicatedServer.java:368) [spigot-1.8.3.jar:git-Spigot-2ec6f06-7722428]
        at net.minecraft.server.v1_8_R2.MinecraftServer.z(MinecraftServer.java:651) [spigot-1.8.3.jar:git-Spigot-2ec6f06-7722428]
        at net.minecraft.server.v1_8_R2.MinecraftServer.run(MinecraftServer.java:554) [spigot-1.8.3.jar:git-Spigot-2ec6f06-7722428]
        at java.lang.Thread.run(Thread.java:745) [?:1.7.0_71]
Caused by: java.lang.NoClassDefFoundError: net/minecraft/server/v1_8_R1/NBTBase
        at com.Zrips.CheckMyInventory.Util.CheckIfPlayerExists(Util.java:58) ~[?:?]
        at com.Zrips.CheckMyInventory.OfflineInventory.OpenOfflineGUIInventory(OfflineInventory.java:150) ~[?:?]
        at com.Zrips.CheckMyInventory.OnCommand.onCommand(OnCommand.java:55) ~[?:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[spigot-1.8.3.jar:git-Spigot-2ec6f06-7722428]
        ... 13 more
Caused by: java.lang.ClassNotFoundException: net.minecraft.server.v1_8_R1.NBTBase
        at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:91) ~[spigot-1.8.3.jar:git-Spigot-2ec6f06-7722428]
        at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:86) ~[spigot-1.8.3.jar:git-Spigot-2ec6f06-7722428]
        at java.lang.ClassLoader.loadClass(ClassLoader.java:425) ~[?:1.7.0_71]
        at java.lang.ClassLoader.loadClass(ClassLoader.java:358) ~[?:1.7.0_71]
        at com.Zrips.CheckMyInventory.Util.CheckIfPlayerExists(Util.java:58) ~[?:?]
        at com.Zrips.CheckMyInventory.OfflineInventory.OpenOfflineGUIInventory(OfflineInventory.java:150) ~[?:?]
        at com.Zrips.CheckMyInventory.OnCommand.onCommand(OnCommand.java:55) ~[?:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[spigot-1.8.3.jar:git-Spigot-2ec6f06-7722428]
        ... 13 more
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