[21:20:36 ERROR]: Error occurred while enabling Denizen v0.9.6-SNAPSHOT (build 1
535) (Is it up to date?)
java.lang.NoClassDefFoundError: net/citizensnpcs/api/ai/StuckAction
        at net.aufdemrand.denizen.tags.TagManager.registerCoreTags(TagManager.ja
va:54) ~[?:?]
        at net.aufdemrand.denizen.Denizen.onEnable(Denizen.java:334) ~[?:?]
        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:316) ~[s
pigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
        at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader
.java:332) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
        at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManage
r.java:412) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
        at org.bukkit.craftbukkit.v1_7_R4.CraftServer.loadPlugin(CraftServer.jav
a:476) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
        at org.bukkit.craftbukkit.v1_7_R4.CraftServer.enablePlugins(CraftServer.
java:394) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
        at net.minecraft.server.v1_7_R4.MinecraftServer.n(MinecraftServer.java:3
60) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
        at net.minecraft.server.v1_7_R4.MinecraftServer.g(MinecraftServer.java:3
34) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
        at net.minecraft.server.v1_7_R4.MinecraftServer.a(MinecraftServer.java:2
90) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
        at net.minecraft.server.v1_7_R4.DedicatedServer.init(DedicatedServer.jav
a:210) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
        at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java
:458) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
        at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:6
28) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
Caused by: java.lang.ClassNotFoundException: net.citizensnpcs.api.ai.StuckAction

        at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.8.0_25]
        at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.8.0_25]
        at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_
25]
        at java.net.URLClassLoader.findClass(Unknown Source) ~[?:1.8.0_25]
        at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.
java:101) ~[spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
        at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.
java:86) ~[spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
        at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_25]
        at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_25]
        ... 13 more