Bukkit

What steps will reproduce the problem?
1.After start a game;
2.During the game, this spams fastest

What is the expected output? What do you see instead?
The game aparently flows fine, but console still spams this error

What version of the product are you using?
1.7.10

Do you have an error log of what happened?
Yes:

[19:39:05 ERROR]: Could not pass event PlayerMoveEvent to BomberCraft v1.3
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja
va:294) ~[craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.jav
a:62) ~[craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.j
ava:501) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.j
ava:486) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
        at net.minecraft.server.v1_7_R4.PlayerConnection.a(PlayerConnection.java
:236) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
        at net.minecraft.server.v1_7_R4.PacketPlayInFlying.a(SourceFile:137) [cr
aftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
        at net.minecraft.server.v1_7_R4.PacketPlayInPositionLook.handle(SourceFi
le:20) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
        at net.minecraft.server.v1_7_R4.NetworkManager.a(NetworkManager.java:157
) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
        at net.minecraft.server.v1_7_R4.ServerConnection.c(SourceFile:134) [craf
tbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
        at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:6
67) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
        at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:2
58) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
        at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:5
58) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
        at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java
:469) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
        at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:6
28) [craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
Caused by: java.lang.NoClassDefFoundError: org/bukkit/craftbukkit/v1_6_R3/entity
/CraftPlayer
        at com.Pigeon.Pigeoncraft.BomberCraft.PlayerManager.PlayerMovementEvent(
PlayerManager.java:248) ~[?:?]
        at com.Pigeon.Pigeoncraft.BomberCraft.GameEventManager.onPlayerMove(Game
EventManager.java:53) ~[?:?]
        at com.Pigeon.Pigeoncraft.BomberCraft.BCPlayerListener.onPlayerMove(BCPl
ayerListener.java:247) ~[?:?]
        at sun.reflect.GeneratedMethodAccessor28.invoke(Unknown Source) ~[?:?]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1
.8.0_20]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_20]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja
va:292) ~[craftbukkit-1.7.10.jar:git-Bukkit-1.7.9-R0.2-18-ga04b586-b3107jnks]
        ... 13 more

Please provide any additional information below.
I have tested only with basic plugins like Essentials, worldguard, and chat plugin...