[22:52:29] [Server thread/INFO]: [CombatTag] Enabling CombatTag v6.4.1-SNAPSHOT
[22:52:29] [Server thread/ERROR]: Error occurred while enabling CombatTag v6.4.1-SNAPSHOT (Is it up to date?)
java.lang.ExceptionInInitializerError
	at java.lang.Class.forName0(Native Method) ~[?:1.8.0_31]
	at java.lang.Class.forName(Unknown Source) ~[?:1.8.0_31]
	at com.trc202.CombatTag.libs.npclib.nms.Util.getNMS(Util.java:31) ~[?:?]
	at com.trc202.CombatTag.libs.npclib.NPCLib.hasNMS(NPCLib.java:59) ~[?:?]
	at com.trc202.CombatTag.libs.npclib.NPCLib.isSupported(NPCLib.java:46) ~[?:?]
	at com.trc202.CombatTag.CombatTag.isVersionSupported(CombatTag.java:518) ~[?:?]
	at com.trc202.CombatTag.CombatTag.onEnable(CombatTag.java:97) ~[?:?]
	at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:321) ~[spigot.jar:git-Spigot-5818108-a486600]
	at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:335) [spigot.jar:git-Spigot-5818108-a486600]
	at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:405) [spigot.jar:git-Spigot-5818108-a486600]
	at org.bukkit.craftbukkit.v1_8_R3.CraftServer.loadPlugin(CraftServer.java:356) [spigot.jar:git-Spigot-5818108-a486600]
	at org.bukkit.craftbukkit.v1_8_R3.CraftServer.enablePlugins(CraftServer.java:316) [spigot.jar:git-Spigot-5818108-a486600]
	at net.minecraft.server.v1_8_R3.MinecraftServer.s(MinecraftServer.java:418) [spigot.jar:git-Spigot-5818108-a486600]
	at net.minecraft.server.v1_8_R3.MinecraftServer.k(MinecraftServer.java:382) [spigot.jar:git-Spigot-5818108-a486600]
	at net.minecraft.server.v1_8_R3.MinecraftServer.a(MinecraftServer.java:337) [spigot.jar:git-Spigot-5818108-a486600]
	at net.minecraft.server.v1_8_R3.DedicatedServer.init(DedicatedServer.java:257) [spigot.jar:git-Spigot-5818108-a486600]
	at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:528) [spigot.jar:git-Spigot-5818108-a486600]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_31]
Caused by: java.lang.ArrayIndexOutOfBoundsException: 0
	at com.trc202.CombatTag.libs.npclib.nms.versions.v1_8_R3.NMS.<clinit>(NMS.java:87) ~[?:?]
	... 18 more