[15:36:48] [Server thread/WARN]: java.lang.ClassNotFoundException: net.minecraft.server.v1_7_R4.BlockPosition
[15:36:48] [Server thread/WARN]: 	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:91)
[15:36:48] [Server thread/WARN]: 	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:86)
[15:36:48] [Server thread/WARN]: 	at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
[15:36:48] [Server thread/WARN]: 	at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
[15:36:48] [Server thread/WARN]: 	at java.lang.Class.forName0(Native Method)
[15:36:48] [Server thread/WARN]: 	at java.lang.Class.forName(Class.java:195)
[15:36:48] [Server thread/WARN]: 	at me.philipsnostrum.factionwars.managers.NMSManager.getNMSClass(NMSManager.java:92)
[15:36:48] [Server thread/WARN]: 	at me.philipsnostrum.factionwars.menus.AnvilGUI.loadClasses(AnvilGUI.java:38)
[15:36:48] [Server thread/WARN]: 	at me.philipsnostrum.factionwars.menus.AnvilGUI.<init>(AnvilGUI.java:46)
[15:36:48] [Server thread/WARN]: 	at me.philipsnostrum.factionwars.menus.PlayerSelector.processClick(PlayerSelector.java:116)
[15:36:48] [Server thread/WARN]: 	at me.philipsnostrum.factionwars.listener.InventoryClickListener.onClick(InventoryClickListener.java:21)
[15:36:48] [Server thread/WARN]: 	at sun.reflect.GeneratedMethodAccessor123.invoke(Unknown Source)
[15:36:48] [Server thread/WARN]: 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[15:36:48] [Server thread/WARN]: 	at java.lang.reflect.Method.invoke(Method.java:606)
[15:36:48] [Server thread/WARN]: 	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:298)
[15:36:48] [Server thread/WARN]: 	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
[15:36:48] [Server thread/WARN]: 	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:509)
[15:36:48] [Server thread/WARN]: 	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:494)
[15:36:48] [Server thread/WARN]: 	at net.minecraft.server.v1_7_R4.PlayerConnection.a(PlayerConnection.java:1440)
[15:36:48] [Server thread/WARN]: 	at net.minecraft.server.v1_7_R4.PacketPlayInWindowClick.a(PacketPlayInWindowClick.java:15)
[15:36:48] [Server thread/WARN]: 	at net.minecraft.server.v1_7_R4.PacketPlayInWindowClick.handle(PacketPlayInWindowClick.java:65)
[15:36:48] [Server thread/WARN]: 	at net.minecraft.server.v1_7_R4.NetworkManager.a(NetworkManager.java:189)
[15:36:48] [Server thread/WARN]: 	at net.minecraft.server.v1_7_R4.ServerConnection.c(ServerConnection.java:81)
[15:36:48] [Server thread/WARN]: 	at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:795)
[15:36:48] [Server thread/WARN]: 	at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:307)
[15:36:48] [Server thread/WARN]: 	at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:643)
[15:36:48] [Server thread/WARN]: 	at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:549)
[15:36:48] [Server thread/WARN]: 	at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628)
[15:36:48] [Server thread/WARN]: java.lang.NoSuchMethodException: net.minecraft.server.v1_7_R4.ContainerAnvil.<init>(net.minecraft.server.v1_7_R4.PlayerInventory, net.minecraft.server.v1_7_R4.World, null, net.minecraft.server.v1_7_R4.EntityHuman)
[15:36:48] [Server thread/WARN]: 	at java.lang.Class.getConstructor0(Class.java:2902)
[15:36:48] [Server thread/WARN]: 	at java.lang.Class.getConstructor(Class.java:1731)
[15:36:48] [Server thread/WARN]: 	at me.philipsnostrum.factionwars.menus.AnvilGUI.open(AnvilGUI.java:125)
[15:36:48] [Server thread/WARN]: 	at me.philipsnostrum.factionwars.menus.PlayerSelector.processClick(PlayerSelector.java:134)
[15:36:48] [Server thread/WARN]: 	at me.philipsnostrum.factionwars.listener.InventoryClickListener.onClick(InventoryClickListener.java:21)
[15:36:48] [Server thread/WARN]: 	at sun.reflect.GeneratedMethodAccessor123.invoke(Unknown Source)
[15:36:48] [Server thread/WARN]: 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[15:36:48] [Server thread/WARN]: 	at java.lang.reflect.Method.invoke(Method.java:606)
[15:36:48] [Server thread/WARN]: 	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:298)
[15:36:48] [Server thread/WARN]: 	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
[15:36:48] [Server thread/WARN]: 	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:509)
[15:36:48] [Server thread/WARN]: 	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:494)
[15:36:48] [Server thread/WARN]: 	at net.minecraft.server.v1_7_R4.PlayerConnection.a(PlayerConnection.java:1440)
[15:36:48] [Server thread/WARN]: 	at net.minecraft.server.v1_7_R4.PacketPlayInWindowClick.a(PacketPlayInWindowClick.java:15)
[15:36:48] [Server thread/WARN]: 	at net.minecraft.server.v1_7_R4.PacketPlayInWindowClick.handle(PacketPlayInWindowClick.java:65)
[15:36:48] [Server thread/WARN]: 	at net.minecraft.server.v1_7_R4.NetworkManager.a(NetworkManager.java:189)
[15:36:48] [Server thread/WARN]: 	at net.minecraft.server.v1_7_R4.ServerConnection.c(ServerConnection.java:81)
[15:36:48] [Server thread/WARN]: 	at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:795)
[15:36:48] [Server thread/WARN]: 	at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:307)
[15:36:48] [Server thread/WARN]: 	at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:643)
[15:36:48] [Server thread/WARN]: 	at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:549)
[15:36:48] [Server thread/WARN]: 	at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628)