org.bukkit.command.CommandException: Unhandled exception executing command 'core' in plugin Core v2.0
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:47) ~[spigot.jar:git-PaperSpigot-"8b18730"]
	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:143) ~[spigot.jar:git-PaperSpigot-"8b18730"]
	at org.bukkit.craftbukkit.v1_8_R3.CraftServer.dispatchCommand(CraftServer.java:666) ~[spigot.jar:git-PaperSpigot-"8b18730"]
	at net.minecraft.server.v1_8_R3.PlayerConnection.handleCommand(PlayerConnection.java:1189) [spigot.jar:git-PaperSpigot-"8b18730"]
	at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:1001) [spigot.jar:git-PaperSpigot-"8b18730"]
	at net.minecraft.server.v1_8_R3.PacketPlayInChat.a(PacketPlayInChat.java:45) [spigot.jar:git-PaperSpigot-"8b18730"]
	at net.minecraft.server.v1_8_R3.PacketPlayInChat.a(PacketPlayInChat.java:1) [spigot.jar:git-PaperSpigot-"8b18730"]
	at net.minecraft.server.v1_8_R3.PlayerConnectionUtils$1.run(SourceFile:13) [spigot.jar:git-PaperSpigot-"8b18730"]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_66-internal]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_66-internal]
	at net.minecraft.server.v1_8_R3.SystemUtils.a(SourceFile:44) [spigot.jar:git-PaperSpigot-"8b18730"]
	at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:774) [spigot.jar:git-PaperSpigot-"8b18730"]
	at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:378) [spigot.jar:git-PaperSpigot-"8b18730"]
	at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:713) [spigot.jar:git-PaperSpigot-"8b18730"]
	at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:616) [spigot.jar:git-PaperSpigot-"8b18730"]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_66-internal]
Caused by: java.lang.NoClassDefFoundError: org/bukkit/craftbukkit/libs/com/google/gson/GsonBuilder
	at com.fearpvp.core.objects.Module.<init>(Module.java:59) ~[?:?]
	at com.fearpvp.ai.AI.<init>(AI.java:31) ~[?:?]
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_66-internal]
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[?:1.8.0_66-internal]
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:1.8.0_66-internal]
	at java.lang.reflect.Constructor.newInstance(Constructor.java:422) ~[?:1.8.0_66-internal]
	at java.lang.Class.newInstance(Class.java:442) ~[?:1.8.0_66-internal]
	at com.fearpvp.core.commands.Load.process(Load.java:28) ~[?:?]
	at com.fearpvp.core.Core.onCommand(Core.java:91) ~[?:?]
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45) ~[spigot.jar:git-PaperSpigot-"8b18730"]
	... 15 more