[00:16:49 ERROR]: Could not pass event PlayerCommandPreprocessEvent to CMI v8.0.21.4
org.bukkit.event.EventException: null
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[spigot-1.12.2-hideseek.jar:git-Spigot-642f6d2-6103339]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot-1.12.2-hideseek.jar:git-Spigot-642f6d2-6103339]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:500) [spigot-1.12.2-hideseek.jar:git-Spigot-642f6d2-6103339]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:485) [spigot-1.12.2-hideseek.jar:git-Spigot-642f6d2-6103339]
        at net.minecraft.server.v1_12_R1.PlayerConnection.handleCommand(PlayerConnection.java:1389) [spigot-1.12.2-hideseek.jar:git-Spigot-642f6d2-6103339]
        at net.minecraft.server.v1_12_R1.PlayerConnection.a(PlayerConnection.java:1232) [spigot-1.12.2-hideseek.jar:git-Spigot-642f6d2-6103339]
        at net.minecraft.server.v1_12_R1.PacketPlayInChat.a(PacketPlayInChat.java:45) [spigot-1.12.2-hideseek.jar:git-Spigot-642f6d2-6103339]
        at net.minecraft.server.v1_12_R1.PacketPlayInChat.a(PacketPlayInChat.java:1) [spigot-1.12.2-hideseek.jar:git-Spigot-642f6d2-6103339]
        at net.minecraft.server.v1_12_R1.PlayerConnectionUtils$1.run(SourceFile:13) [spigot-1.12.2-hideseek.jar:git-Spigot-642f6d2-6103339]
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_181]
        at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_181]
        at net.minecraft.server.v1_12_R1.SystemUtils.a(SourceFile:46) [spigot-1.12.2-hideseek.jar:git-Spigot-642f6d2-6103339]
        at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:748) [spigot-1.12.2-hideseek.jar:git-Spigot-642f6d2-6103339]
        at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:406) [spigot-1.12.2-hideseek.jar:git-Spigot-642f6d2-6103339]
        at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:679) [spigot-1.12.2-hideseek.jar:git-Spigot-642f6d2-6103339]
        at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:577) [spigot-1.12.2-hideseek.jar:git-Spigot-642f6d2-6103339]
        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_181]
Caused by: java.lang.NoClassDefFoundError: me/TechXcrafter/UltraPermissions/UltraPermissions
        at com.Zrips.CMI.Modules.Permissions.UltraPermissions3Handler.getPrefix(UltraPermissions3Handler.java:43) ~[?:?]
        at com.Zrips.CMI.Modules.Permissions.PermissionsManager.getPrefix(PermissionsManager.java:596) ~[?:?]
        at com.Zrips.CMI.Containers.CMIUser.updatePrefix(CMIUser.java:481) ~[?:?]
        at com.Zrips.CMI.Containers.CMIUser.getPrefix(CMIUser.java:556) ~[?:?]
        at com.Zrips.CMI.Locale.Language.replacePlayer(Language.java:286) ~[?:?]
        at com.Zrips.CMI.Locale.Language.updateSnd(Language.java:176) ~[?:?]
        at com.Zrips.CMI.Modules.Alias.onPreprocessCommand.onCommand(onPreprocessCommand.java:76) ~[?:?]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_181]
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_181]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_181]
        at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_181]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[spigot-1.12.2-hideseek.jar:git-Spigot-642f6d2-6103339]
        ... 16 more