[20:54:27 ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'hns' in plugin HideNSeek
 v0.1
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[spigot.jar:git-Spigot-8
99f5ee-1092acb]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) ~[spigot.jar:git-
Spigot-899f5ee-1092acb]
        at org.bukkit.craftbukkit.v1_8_R1.CraftServer.dispatchCommand(CraftServer.java:645) ~[spigot
.jar:git-Spigot-899f5ee-1092acb]
        at net.minecraft.server.v1_8_R1.PlayerConnection.handleCommand(PlayerConnection.java:1115) [
spigot.jar:git-Spigot-899f5ee-1092acb]
        at net.minecraft.server.v1_8_R1.PlayerConnection.a(PlayerConnection.java:950) [spigot.jar:gi
t-Spigot-899f5ee-1092acb]
        at net.minecraft.server.v1_8_R1.PacketPlayInChat.a(PacketPlayInChat.java:26) [spigot.jar:git
-Spigot-899f5ee-1092acb]
        at net.minecraft.server.v1_8_R1.PacketPlayInChat.a(PacketPlayInChat.java:53) [spigot.jar:git
-Spigot-899f5ee-1092acb]
        at net.minecraft.server.v1_8_R1.PacketHandleTask.run(SourceFile:13) [spigot.jar:git-Spigot-8
99f5ee-1092acb]
        at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_91]
        at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_91]
        at net.minecraft.server.v1_8_R1.MinecraftServer.z(MinecraftServer.java:683) [spigot.jar:git-
Spigot-899f5ee-1092acb]
        at net.minecraft.server.v1_8_R1.DedicatedServer.z(DedicatedServer.java:316) [spigot.jar:git-
Spigot-899f5ee-1092acb]
        at net.minecraft.server.v1_8_R1.MinecraftServer.y(MinecraftServer.java:623) [spigot.jar:git-
Spigot-899f5ee-1092acb]
        at net.minecraft.server.v1_8_R1.MinecraftServer.run(MinecraftServer.java:526) [spigot.jar:gi
t-Spigot-899f5ee-1092acb]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_91]
Caused by: java.lang.NoClassDefFoundError: net/corinth/hidenseek/game/HNSGame
        at net.corinth.hidenseek.commands.hns.onCommand(hns.java:59) ~[?:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[spigot.jar:git-Spigot-8
99f5ee-1092acb]
        ... 14 more