Problem/Bug Error with EssentialsChat | No folder | Chatmanager+

I dont know how to fix this error ...

Essentials chat is not creating a folder ...

Plugins i use:

• AutoSaveWorld
• BouncySponge
• CoreProtect
• Head
• Orebusfactor
• Simpleprefix
• AutoMessage
• CommandBook
• FoundDiamonds
• Kits
• LWC
• MultiWorld
• NoCheatPlus
• PermissionsEx
• ServerSigns
• WorldEdit
• WorldGuard

In some weird way it says, that ChatManager is one of my plugins ... I deleted it already ? How to fix those errors ?

Code:

[13:35:01] [Server thread/INFO]: Starting minecraft server version 1.7.9
[13:35:01] [Server thread/INFO]: Loading properties
[13:35:01] [Server thread/INFO]: Default game type: SURVIVAL
[13:35:01] [Server thread/INFO]: Generating keypair
[13:35:02] [Server thread/INFO]: Starting Minecraft server on ''MyServerIP''
[13:35:02] [Server thread/INFO]: This server is running CraftBukkit version git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks (MC: 1.7.9) (Implementing API version 1.7.9-R0.2)
[13:35:02] [Thread-8/WARN]: Could not get information about this CraftBukkit version; perhaps you are running a custom one?: IOException
[13:35:02] [Thread-8/WARN]: Could not get latest artifact information: IOException
[13:35:03] [Server thread/INFO]: [MultiWorld] Loading MultiWorld v5.2.6
[13:35:03] [Server thread/INFO]: [AutoMessage] Loading AutoMessage v2.5.2
[13:35:03] [Server thread/INFO]: [BouncySponge] Loading BouncySponge v1.8.2
[13:35:03] [Server thread/INFO]: [NoCheatPlus] Loading NoCheatPlus v3.11.1-RC-sMD5NET-b743
[13:35:03] [Server thread/INFO]: [WorldEdit] Loading WorldEdit v6.0;3342-78f975b9
[13:35:03] [Server thread/INFO]: [PermissionsEx] Loading PermissionsEx v1.22.7
[13:35:03] [Server thread/INFO]: [ServerSigns] Loading ServerSigns v3.1.0
[13:35:03] [Server thread/INFO]: [FoundDiamonds] Loading FoundDiamonds v3.6.4
[13:35:03] [Server thread/INFO]: [CommandBook] Loading CommandBook v2.4:1692-75bb1c8,master
[13:35:03] [Server thread/INFO]: [ChatManager] Loading ChatManager v4.3
[13:35:03] [Server thread/INFO]: [WorldGuard] Loading WorldGuard v6.0.0-beta-02
[13:35:03] [Server thread/INFO]: Preparing level "Baqonator"
[13:35:03] [Server thread/INFO]: Preparing start region for level 0 (Seed: 7516028842623410807)
[13:35:04] [Server thread/INFO]: Preparing spawn area: 32%
[13:35:05] [Server thread/INFO]: Preparing spawn area: 99%
[13:35:05] [Server thread/INFO]: Preparing start region for level 1 (Seed: 1963512241345310679)
[13:35:06] [Server thread/INFO]: Preparing start region for level 2 (Seed: 1963512241345310679)
[13:35:06] [Server thread/INFO]: [MultiWorld] Enabling MultiWorld v5.2.6
[13:35:06] [Server thread/INFO]: Preparing start region for level 3 (Seed: 2056088311166779898)
[13:35:07] [Server thread/INFO]: Preparing spawn area for Survival, 61%
[13:35:07] [Server thread/INFO]: [MultiWorld] v5.2.6 enabled.
[13:35:08] [Server thread/INFO]: [AutoMessage] Enabling AutoMessage v2.5.2
[13:35:08] [Server thread/INFO]: [BouncySponge] Enabling BouncySponge v1.8.2
[13:35:08] [Server thread/INFO]: [BouncySponge] BouncySponge version 1.8.2 is enabled!
[13:35:08] [Server thread/INFO]: [BouncySponge] Thanks for using BouncySponge by adencraft2000 and kamehameha1
[13:35:08] [Server thread/INFO]: [BouncySponge] http://dev.bukkit.org/bukkit-plugins/bouncysponge
[13:35:08] [Server thread/INFO]: [BouncySponge] Your config file is up to date
[13:35:08] [Server thread/INFO]: [NoCheatPlus] Enabling NoCheatPlus v3.11.1-RC-sMD5NET-b743
[13:35:08] [Server thread/INFO]: [NoCheatPlus] McAccess set to: 1.7.8|1.7.9 / CB3043
[13:35:08] [Server thread/INFO]: [NoCheatPlus] Added block-info for Minecraft 1.5 blocks.
[13:35:08] [Server thread/INFO]: [NoCheatPlus] Added block-info for Minecraft 1.6.1 blocks.
[13:35:08] [Server thread/INFO]: [NoCheatPlus] Added block-info for Minecraft 1.7.2 blocks.
[13:35:08] [Server thread/INFO]: [NoCheatPlus] Inventory checks: FastConsume is available, disabled InstantEat.
[13:35:08] [Server thread/INFO]: [NoCheatPlus] Packet level access: ProtocolLib is not available.
[13:35:08] [Server thread/INFO]: [NoCheatPlus] Version 3.11.1-RC-sMD5NET-b743 is enabled.
[13:35:09] [Server thread/INFO]: [WorldEdit] Enabling WorldEdit v6.0;3342-78f975b9
[13:35:10] [Server thread/INFO]: WEPIF: Using the Bukkit Permissions API.
[13:35:10] [Server thread/INFO]: [WorldEdit] Using com.sk89q.worldedit.bukkit.adapter.impl.CraftBukkit_v1_7_R3 as the Bukkit adapter
[13:35:10] [Server thread/INFO]: [PermissionsEx] Enabling PermissionsEx v1.22.7
[13:35:10] [Server thread/INFO]: [PermissionsEx] Initializing file backend
[13:35:10] [Server thread/INFO]: [PermissionsEx] Permissions file successfully reloaded
[13:35:10] [Server thread/INFO]: WEPIF: PermissionsEx detected! Using PermissionsEx for permissions.
[13:35:10] [Server thread/INFO]: [ServerSigns] Enabling ServerSigns v3.1.0
[13:35:10] [Server thread/INFO]: [ServerSigns] Please download Vault at http://dev.bukkit.org/server-mods/vault/ for Economy and "Permission grant" support.
[13:35:10] [Server thread/ERROR]: [ServerSigns] Plugin ServerSigns v3.1.0 has failed to register events for class de.czymm.serversigns.queueSystem.QueueHandler because net/milkbowl/vault/permission/Permission does not exist.
[13:35:10] [Server thread/INFO]: [ServerSigns] Version 3.1.0 is now enabled.
[13:35:10] [Server thread/INFO]: [FoundDiamonds] Enabling FoundDiamonds v3.6.4
[13:35:10] [Server thread/INFO]: [FoundDiamonds] Enabled
[13:35:10] [Server thread/INFO]: [CommandBook] Enabling CommandBook v2.4:1692-75bb1c8,master
[13:35:10] [Server thread/INFO]: [CommandBook] Maximum wrapper compatibility is enabled. Some features have been disabled to be compatible with poorly written server wrappers.
[13:35:10] [Server thread/INFO]: [CommandBook] 1 kit(s) loaded.
[13:35:10] [Server thread/INFO]: [CommandBook] 0 Homes(s) loaded
[13:35:10] [Server thread/INFO]: [CommandBook] 0 Warps(s) loaded
[13:35:10] [Server thread/INFO]: [ChatManager] Enabling ChatManager v4.3
[13:35:10] [Server thread/INFO]: [0;31;1m[ChatManager+ Error][0;37;22m Vault could not be found[m
[13:35:10] [Server thread/INFO]: [0;31;1m[ChatManager+] [0;37;22mMetrics could not be found! (requires Vault)[m
[13:35:10] [Server thread/INFO]: [0;31;1m[ChatManager+ Log] [0;37;22mnet/milkbowl/vault/Metrics[m
[13:35:10] [Server thread/INFO]: [0;31;1m---------[ ChatManager+ ]---------[m
[13:35:10] [Server thread/INFO]: [0;31;1m<>[0;37;1m     Made by Rene Uchiha[m
[13:35:10] [Server thread/INFO]: [0;31;1m<>[0;37;1m            v4.3[m
[13:35:10] [Server thread/INFO]: [0;31;1m<>[0;37;1m    http://minefactory.net[m
[13:35:10] [Server thread/INFO]: [0;31;1m----------------------------------[m
[13:35:10] [Server thread/INFO]: [0;32;1m[ChatManager+][0;37;22m Continue without Group-Plugin..[m
[13:35:10] [Server thread/INFO]: [WorldGuard] Enabling WorldGuard v6.0.0-beta-02
[13:35:11] [Server thread/INFO]: [WorldGuard] (Baqonator) TNT ignition is PERMITTED.
[13:35:11] [Server thread/INFO]: [WorldGuard] (Baqonator) Lighters are PERMITTED.
[13:35:11] [Server thread/INFO]: [WorldGuard] (Baqonator) Lava fire is blocked.
[13:35:11] [Server thread/INFO]: [WorldGuard] (Baqonator) Fire spread is UNRESTRICTED.
[13:35:11] [Server thread/INFO]: [WorldGuard] Loaded configuration for world 'Baqonator'
[13:35:11] [Server thread/INFO]: [WorldGuard] (Baqonator_nether) TNT ignition is PERMITTED.
[13:35:11] [Server thread/INFO]: [WorldGuard] (Baqonator_nether) Lighters are PERMITTED.
[13:35:11] [Server thread/INFO]: [WorldGuard] (Baqonator_nether) Lava fire is blocked.
[13:35:11] [Server thread/INFO]: [WorldGuard] (Baqonator_nether) Fire spread is UNRESTRICTED.
[13:35:11] [Server thread/INFO]: [WorldGuard] Loaded configuration for world 'Baqonator_nether'
[13:35:11] [Server thread/INFO]: [WorldGuard] (Baqonator_the_end) TNT ignition is PERMITTED.
[13:35:11] [Server thread/INFO]: [WorldGuard] (Baqonator_the_end) Lighters are PERMITTED.
[13:35:11] [Server thread/INFO]: [WorldGuard] (Baqonator_the_end) Lava fire is blocked.
[13:35:11] [Server thread/INFO]: [WorldGuard] (Baqonator_the_end) Fire spread is UNRESTRICTED.
[13:35:11] [Server thread/INFO]: [WorldGuard] Loaded configuration for world 'Baqonator_the_end'
[13:35:11] [Server thread/INFO]: [WorldGuard] (Survival) TNT ignition is PERMITTED.
[13:35:11] [Server thread/INFO]: [WorldGuard] (Survival) Lighters are PERMITTED.
[13:35:11] [Server thread/INFO]: [WorldGuard] (Survival) Lava fire is blocked.
[13:35:11] [Server thread/INFO]: [WorldGuard] (Survival) Fire spread is UNRESTRICTED.
[13:35:11] [Server thread/INFO]: [WorldGuard] Loaded configuration for world 'Survival'
[13:35:11] [Server thread/INFO]: [WorldGuard] Loading region data...
[13:35:11] [Server thread/INFO]: Server permissions file permissions.yml is empty, ignoring it
[13:35:12] [Server thread/INFO]: Done (8.625s)! For help, type "help" or "?"
[13:35:12] [Server thread/INFO]: Starting GS4 status listener
[13:35:12] [Server thread/INFO]: Setting default query port to 25565
[13:35:12] [Query Listener #1/INFO]: Query running on ''IP''
[13:35:12] [Server thread/INFO]: [NoCheatPlus] Post-enable running...
[13:35:12] [Server thread/INFO]: [NoCheatPlus] Post-enable finished.
[13:35:19] [pool-3-thread-4/INFO]: [Metrics] Server returned HTTP response code: 502 for URL: http://mcstats.org/report/ServerSigns
[13:35:33] [User Authenticator #1/INFO]: UUID of player T33m0 is f07ee266-67e5-48de-a7f6-82d647f522df
[13:35:33] [Server thread/ERROR]: Could not pass event PlayerJoinEvent to ChatManager v4.3
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:294) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:501) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:486) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.server.v1_7_R3.PlayerList.c(PlayerList.java:251) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.server.v1_7_R3.PlayerList.a(PlayerList.java:138) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.server.v1_7_R3.LoginListener.c(LoginListener.java:76) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.server.v1_7_R3.LoginListener.a(LoginListener.java:42) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.server.v1_7_R3.NetworkManager.a(NetworkManager.java:160) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.server.v1_7_R3.ServerConnection.c(SourceFile:134) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.server.v1_7_R3.MinecraftServer.v(MinecraftServer.java:667) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.server.v1_7_R3.DedicatedServer.v(DedicatedServer.java:260) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.server.v1_7_R3.MinecraftServer.u(MinecraftServer.java:558) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.server.v1_7_R3.MinecraftServer.run(MinecraftServer.java:469) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.server.v1_7_R3.ThreadServerApplication.run(SourceFile:628) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
Caused by: java.lang.NoClassDefFoundError: net/milkbowl/vault/economy/Economy
    at net.minefactory.chatmanager.ChatListener.onPlayerJoin(ChatListener.java:97) ~[?:?]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_71]
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_71]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_71]
    at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_71]
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:292) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    ... 14 more
Caused by: java.lang.ClassNotFoundException: net.milkbowl.vault.economy.Economy
    at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.7.0_71]
    at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.7.0_71]
    at java.security.AccessController.doPrivileged(Native Method) ~[?:1.7.0_71]
    at java.net.URLClassLoader.findClass(Unknown Source) ~[?:1.7.0_71]
    at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:77) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:62) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.7.0_71]
    at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.7.0_71]
    at net.minefactory.chatmanager.ChatListener.onPlayerJoin(ChatListener.java:97) ~[?:?]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_71]
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_71]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_71]
    at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_71]
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:292) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    ... 14 more
[13:35:33] [Server thread/INFO]: T33m0[/84.143.100.3:53412] logged in with entity id 811 at ([Survival] -270.2180754230854, 70.0, 170.90998188300267)
[13:35:40] [Netty IO #2/ERROR]: Could not pass event AsyncPlayerChatEvent to ChatManager v4.3
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:294) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:501) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:483) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.server.v1_7_R3.PlayerConnection.chat(PlayerConnection.java:881) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.server.v1_7_R3.PlayerConnection.a(PlayerConnection.java:831) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.server.v1_7_R3.PacketPlayInChat.a(PacketPlayInChat.java:28) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.server.v1_7_R3.PacketPlayInChat.handle(PacketPlayInChat.java:47) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.server.v1_7_R3.NetworkManager.a(NetworkManager.java:84) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.server.v1_7_R3.NetworkManager.channelRead0(NetworkManager.java:204) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.util.io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:98) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.util.io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerContext.java:337) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.util.io.netty.channel.DefaultChannelHandlerContext.fireChannelRead(DefaultChannelHandlerContext.java:323) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.util.io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:173) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.util.io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerContext.java:337) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.util.io.netty.channel.DefaultChannelHandlerContext.fireChannelRead(DefaultChannelHandlerContext.java:323) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.util.io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:173) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.util.io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerContext.java:337) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.util.io.netty.channel.DefaultChannelHandlerContext.fireChannelRead(DefaultChannelHandlerContext.java:323) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.util.io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.util.io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerContext.java:337) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.util.io.netty.channel.DefaultChannelHandlerContext.fireChannelRead(DefaultChannelHandlerContext.java:323) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.util.io.netty.handler.timeout.ReadTimeoutHandler.channelRead(ReadTimeoutHandler.java:149) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.util.io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerContext.java:337) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.util.io.netty.channel.DefaultChannelHandlerContext.fireChannelRead(DefaultChannelHandlerContext.java:323) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.util.io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:785) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.util.io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:100) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.util.io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:480) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.util.io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:447) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.util.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:341) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at net.minecraft.util.io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:101) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    at java.lang.Thread.run(Unknown Source) [?:1.7.0_71]
Caused by: java.lang.NoClassDefFoundError: net/milkbowl/vault/economy/Economy
    at net.minefactory.chatmanager.ChatListener.onNickChat(ChatListener.java:52) ~[?:?]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_71]
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_71]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_71]
    at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_71]
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:292) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
    ... 31 more

 

@Baqos Its not an error, all of essentials plugins use the same config (located in the main Essentials folder). But you have to have Vault as well.