Bukkit

What is the issue?
I put the plugin in my servers plugin folder and i opened the server and i went onto my server and the chunks are not loading at all! when i put the plugin on the server then i noticed a error in the server console:
[08:10:43] [Server thread/INFO]: [NoLagg] Enabling NoLagg v1.90.4
[08:10:43] [Server thread/INFO]: [Configuration] File 'plugins\NoLagg\PermissionDefaults.yml' has been generated
[08:10:44] [Server thread/INFO]: [Configuration] File 'plugins\NoLagg\Localization.yml' has been generated
[08:10:44] [Server thread/ERROR]: [NoLagg Chunks] Failed to enable NoLagg component 'Chunks':
[08:10:44] [Server thread/ERROR]: [NoLagg] This version of the plugin is incompatible with this Minecraft version:
[08:10:44] [Server thread/ERROR]: [NoLagg] Please, check for an updated version of NoLagg before reporting this bug!
[08:10:44] [Server thread/ERROR]: java.lang.NoSuchMethodError: net.minecraft.server.v1_7_R4.PlayerChunkMap.<init>(Lnet/minecraft/server/v1_7_R4/WorldServer;I)V
[08:10:44] [Server thread/ERROR]:   at com.bergerkiller.bukkit.common.bases.PlayerChunkMapBase.<init>(PlayerChunkMapBase.java:24)
[08:10:44] [Server thread/ERROR]:   at com.bergerkiller.bukkit.nolagg.chunks.antiloader.DummyPlayerManager.<init>(DummyPlayerManager.java:54)
[08:10:44] [Server thread/ERROR]:   at com.bergerkiller.bukkit.nolagg.chunks.antiloader.DummyPlayerManager.<init>(DummyPlayerManager.java:50)
[08:10:44] [Server thread/ERROR]:   at com.bergerkiller.bukkit.nolagg.chunks.antiloader.DummyPlayerManager.convert(DummyPlayerManager.java:31)
[08:10:44] [Server thread/ERROR]:   at com.bergerkiller.bukkit.nolagg.chunks.antiloader.DummyPlayerManager.convertAll(DummyPlayerManager.java:26)
[08:10:44] [Server thread/ERROR]:   at com.bergerkiller.bukkit.nolagg.chunks.DynamicViewDistance.init(DynamicViewDistance.java:87)
[08:10:44] [Server thread/ERROR]:   at com.bergerkiller.bukkit.nolagg.chunks.NoLaggChunks.onReload(NoLaggChunks.java:115)
[08:10:44] [Server thread/ERROR]:   at com.bergerkiller.bukkit.nolagg.chunks.NoLaggChunks.onEnable(NoLaggChunks.java:121)
[08:10:44] [Server thread/ERROR]:   at com.bergerkiller.bukkit.nolagg.NoLaggComponent.enable(NoLaggComponent.java:59)
[08:10:44] [Server thread/ERROR]:   at com.bergerkiller.bukkit.nolagg.NoLagg.enable(NoLagg.java:58)
[08:10:44] [Server thread/ERROR]:   at com.bergerkiller.bukkit.common.PluginBase.onEnable(PluginBase.java:753)
[08:10:44] [Server thread/ERROR]:   at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:316)
[08:10:44] [Server thread/ERROR]:   at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:324)
[08:10:44] [Server thread/ERROR]:   at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:404)
[08:10:44] [Server thread/ERROR]:   at org.bukkit.craftbukkit.v1_7_R4.CraftServer.loadPlugin(CraftServer.java:455)
[08:10:44] [Server thread/ERROR]:   at org.bukkit.craftbukkit.v1_7_R4.CraftServer.enablePlugins(CraftServer.java:389)
[08:10:44] [Server thread/ERROR]:   at net.minecraft.server.v1_7_R4.MinecraftServer.n(MinecraftServer.java:352)
[08:10:44] [Server thread/ERROR]:   at net.minecraft.server.v1_7_R4.MinecraftServer.g(MinecraftServer.java:326)
[08:10:44] [Server thread/ERROR]:   at net.minecraft.server.v1_7_R4.MinecraftServer.a(MinecraftServer.java:282)
[08:10:44] [Server thread/ERROR]:   at net.minecraft.server.v1_7_R4.DedicatedServer.init(DedicatedServer.java:189)
[08:10:44] [Server thread/ERROR]:   at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:436)
[08:10:44] [Server thread/ERROR]:   at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628)
[08:10:44] [Server thread/INFO]: [NoLagg Saving] will write world data to all region files every 12000 ticks (10.0 minutes)
Please provide any additional information below.