[15:34:53] [Server thread/ERROR]: Could not pass event PlayerItemHeldEvent to BendingPreview v1.0.0
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:305) ~[spigot-1.8.jar:git-Spigot-c3c767f-33d5de3]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot-1.8.jar:git-Spigot-c3c767f-33d5de3]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot-1.8.jar:git-Spigot-c3c767f-33d5de3]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [spigot-1.8.jar:git-Spigot-c3c767f-33d5de3]
	at net.minecraft.server.v1_8_R1.PlayerConnection.a(PlayerConnection.java:884) [spigot-1.8.jar:git-Spigot-c3c767f-33d5de3]
	at net.minecraft.server.v1_8_R1.PacketPlayInHeldItemSlot.a(SourceFile:30) [spigot-1.8.jar:git-Spigot-c3c767f-33d5de3]
	at net.minecraft.server.v1_8_R1.PacketPlayInHeldItemSlot.a(SourceFile:8) [spigot-1.8.jar:git-Spigot-c3c767f-33d5de3]
	at net.minecraft.server.v1_8_R1.PacketHandleTask.run(SourceFile:13) [spigot-1.8.jar:git-Spigot-c3c767f-33d5de3]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_31]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_31]
	at net.minecraft.server.v1_8_R1.MinecraftServer.z(MinecraftServer.java:696) [spigot-1.8.jar:git-Spigot-c3c767f-33d5de3]
	at net.minecraft.server.v1_8_R1.DedicatedServer.z(DedicatedServer.java:316) [spigot-1.8.jar:git-Spigot-c3c767f-33d5de3]
	at net.minecraft.server.v1_8_R1.MinecraftServer.y(MinecraftServer.java:634) [spigot-1.8.jar:git-Spigot-c3c767f-33d5de3]
	at net.minecraft.server.v1_8_R1.MinecraftServer.run(MinecraftServer.java:537) [spigot-1.8.jar:git-Spigot-c3c767f-33d5de3]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_31]
Caused by: java.lang.NoClassDefFoundError: net/minecraft/server/v1_8_R2/Packet
	at MovePreviewer.BPListener.PlayerItemHeld(BPListener.java:59) ~[?:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_31]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_31]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_31]
	at java.lang.reflect.Method.invoke(Method.java:483) ~[?:1.8.0_31]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:301) ~[spigot-1.8.jar:git-Spigot-c3c767f-33d5de3]
	... 14 more
Caused by: java.lang.ClassNotFoundException: net.minecraft.server.v1_8_R2.Packet
	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:91) ~[spigot-1.8.jar:git-Spigot-c3c767f-33d5de3]
	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:86) ~[spigot-1.8.jar:git-Spigot-c3c767f-33d5de3]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_31]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_31]
	at MovePreviewer.BPListener.PlayerItemHeld(BPListener.java:59) ~[?:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_31]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_31]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_31]
	at java.lang.reflect.Method.invoke(Method.java:483) ~[?:1.8.0_31]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:301) ~[spigot-1.8.jar:git-Spigot-c3c767f-33d5de3]
	... 14 more