Bukkit

What steps will reproduce the problem?
1. if players could join
2. error message fills entire consol
3.

What is the expected output? What do you see instead?
it should say like you have joined! (1/12) or something, but instead it simply says "An error has occurred" and spams my consol with error messages

What version of the product are you using?
latest

Do you have an error log of what happened?
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1
.7.0_45]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_45]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja
va:292) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        ... 22 more
[13:59:18 ERROR]: Could not pass event PlayerTeleportEvent to WorldGuard v5.8
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja
va:294) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.jav
a:62) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.j
ava:501) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.j
ava:486) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at org.bukkit.craftbukkit.v1_7_R2.entity.CraftPlayer.teleport(CraftPlaye
r.java:465) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at org.bukkit.craftbukkit.v1_7_R2.entity.CraftEntity.teleport(CraftEntit
y.java:200) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at org.pato.tnttag.managers.ArenaManager.addPlayers(ArenaManager.java:52
) [TNTTag.jar:?]
        at org.pato.tnttag.commands.user.join.onCommand(join.java:43) [TNTTag.ja
r:?]
        at org.pato.tnttag.managers.CommandManager.onCommand(CommandManager.java
:116) [TNTTag.jar:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) [craf
tbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:18
0) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at org.bukkit.craftbukkit.v1_7_R2.CraftServer.dispatchCommand(CraftServe
r.java:696) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.PlayerConnection.handleCommand(PlayerCon
nection.java:952) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.PlayerConnection.a(PlayerConnection.java
:814) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.PacketPlayInChat.a(PacketPlayInChat.java
:28) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.PacketPlayInChat.handle(PacketPlayInChat
.java:47) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.NetworkManager.a(NetworkManager.java:147
) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.ServerConnection.c(SourceFile:134) [craf
tbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.MinecraftServer.v(MinecraftServer.java:6
57) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.DedicatedServer.v(DedicatedServer.java:2
50) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.MinecraftServer.u(MinecraftServer.java:5
48) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.MinecraftServer.run(MinecraftServer.java
:459) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.ThreadServerApplication.run(SourceFile:6
18) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
Caused by: java.lang.NullPointerException
        at com.sk89q.worldguard.protection.GlobalRegionManager.hasBypass(GlobalR
egionManager.java:268) ~[?:?]
        at com.sk89q.worldguard.bukkit.WorldGuardPlayerListener.checkMove(WorldG
uardPlayerListener.java:137) ~[?:?]
        at com.sk89q.worldguard.bukkit.WorldGuardPlayerListener.onPlayerTeleport
(WorldGuardPlayerListener.java:1390) ~[?:?]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0
_45]
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0
_45]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1
.7.0_45]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_45]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja
va:292) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        ... 22 more
[13:59:18 ERROR]: Could not pass event PlayerTeleportEvent to Multiverse-Core v2
.4-b527
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja
va:294) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.jav
a:62) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.j
ava:501) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.j
ava:486) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at org.bukkit.craftbukkit.v1_7_R2.entity.CraftPlayer.teleport(CraftPlaye
r.java:465) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at org.bukkit.craftbukkit.v1_7_R2.entity.CraftEntity.teleport(CraftEntit
y.java:200) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at org.pato.tnttag.managers.ArenaManager.addPlayers(ArenaManager.java:52
) [TNTTag.jar:?]
        at org.pato.tnttag.commands.user.join.onCommand(join.java:43) [TNTTag.ja
r:?]
        at org.pato.tnttag.managers.CommandManager.onCommand(CommandManager.java
:116) [TNTTag.jar:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) [craf
tbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:18
0) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at org.bukkit.craftbukkit.v1_7_R2.CraftServer.dispatchCommand(CraftServe
r.java:696) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.PlayerConnection.handleCommand(PlayerCon
nection.java:952) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.PlayerConnection.a(PlayerConnection.java
:814) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.PacketPlayInChat.a(PacketPlayInChat.java
:28) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.PacketPlayInChat.handle(PacketPlayInChat
.java:47) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.NetworkManager.a(NetworkManager.java:147
) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.ServerConnection.c(SourceFile:134) [craf
tbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.MinecraftServer.v(MinecraftServer.java:6
57) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.DedicatedServer.v(DedicatedServer.java:2
50) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.MinecraftServer.u(MinecraftServer.java:5
48) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.MinecraftServer.run(MinecraftServer.java
:459) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.ThreadServerApplication.run(SourceFile:6
18) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
Caused by: java.lang.NullPointerException
        at com.onarandombox.MultiverseCore.listeners.MVPlayerListener.playerTele
port(MVPlayerListener.java:193) ~[?:?]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0
_45]
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0
_45]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1
.7.0_45]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_45]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja
va:292) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        ... 22 more
[13:59:18 ERROR]: Could not pass event PlayerTeleportEvent to Quake v2.4.1
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja
va:294) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.jav
a:62) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.j
ava:501) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.j
ava:486) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at org.bukkit.craftbukkit.v1_7_R2.entity.CraftPlayer.teleport(CraftPlaye
r.java:465) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at org.bukkit.craftbukkit.v1_7_R2.entity.CraftEntity.teleport(CraftEntit
y.java:200) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at org.pato.tnttag.managers.ArenaManager.addPlayers(ArenaManager.java:52
) [TNTTag.jar:?]
        at org.pato.tnttag.commands.user.join.onCommand(join.java:43) [TNTTag.ja
r:?]
        at org.pato.tnttag.managers.CommandManager.onCommand(CommandManager.java
:116) [TNTTag.jar:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) [craf
tbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:18
0) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at org.bukkit.craftbukkit.v1_7_R2.CraftServer.dispatchCommand(CraftServe
r.java:696) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.PlayerConnection.handleCommand(PlayerCon
nection.java:952) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.PlayerConnection.a(PlayerConnection.java
:814) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.PacketPlayInChat.a(PacketPlayInChat.java
:28) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.PacketPlayInChat.handle(PacketPlayInChat
.java:47) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.NetworkManager.a(NetworkManager.java:147
) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.ServerConnection.c(SourceFile:134) [craf
tbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.MinecraftServer.v(MinecraftServer.java:6
57) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.DedicatedServer.v(DedicatedServer.java:2
50) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.MinecraftServer.u(MinecraftServer.java:5
48) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.MinecraftServer.run(MinecraftServer.java
:459) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.ThreadServerApplication.run(SourceFile:6
18) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
Caused by: java.lang.NullPointerException
        at com.Geekpower14.Quake.Listener.PlayerListener.onPlayerTeleport(Player
Listener.java:387) ~[?:?]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0
_45]
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0
_45]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1
.7.0_45]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_45]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja
va:292) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        ... 22 more
[13:59:18 ERROR]: Could not pass event PlayerTeleportEvent to Multiverse-Portals
v2.4-b548
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja
va:294) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.jav
a:62) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.j
ava:501) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.j
ava:486) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at org.bukkit.craftbukkit.v1_7_R2.entity.CraftPlayer.teleport(CraftPlaye
r.java:465) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at org.bukkit.craftbukkit.v1_7_R2.entity.CraftEntity.teleport(CraftEntit
y.java:200) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at org.pato.tnttag.managers.ArenaManager.addPlayers(ArenaManager.java:52
) [TNTTag.jar:?]
        at org.pato.tnttag.commands.user.join.onCommand(join.java:43) [TNTTag.ja
r:?]
        at org.pato.tnttag.managers.CommandManager.onCommand(CommandManager.java
:116) [TNTTag.jar:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) [craf
tbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:18
0) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at org.bukkit.craftbukkit.v1_7_R2.CraftServer.dispatchCommand(CraftServe
r.java:696) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.PlayerConnection.handleCommand(PlayerCon
nection.java:952) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.PlayerConnection.a(PlayerConnection.java
:814) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.PacketPlayInChat.a(PacketPlayInChat.java
:28) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.PacketPlayInChat.handle(PacketPlayInChat
.java:47) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.NetworkManager.a(NetworkManager.java:147
) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.ServerConnection.c(SourceFile:134) [craf
tbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.MinecraftServer.v(MinecraftServer.java:6
57) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.DedicatedServer.v(DedicatedServer.java:2
50) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.MinecraftServer.u(MinecraftServer.java:5
48) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.MinecraftServer.run(MinecraftServer.java
:459) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        at net.minecraft.server.v1_7_R2.ThreadServerApplication.run(SourceFile:6
18) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
Caused by: java.lang.NullPointerException
        at com.onarandombox.MultiversePortals.utils.PortalManager.getPortal(Port
alManager.java:105) ~[?:?]
        at com.onarandombox.MultiversePortals.PortalPlayerSession.playerDidTelep
ort(PortalPlayerSession.java:222) ~[?:?]
        at com.onarandombox.MultiversePortals.listeners.MVPPlayerListener.player
Teleport(MVPPlayerListener.java:63) ~[?:?]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0
_45]
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0
_45]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1
.7.0_45]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_45]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja
va:292) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-14-g8f8716c-b3042jnks]
        ... 22 more
[13:59:18 WARN]: java.lang.NullPointerException
[13:59:18 WARN]:        at org.bukkit.craftbukkit.v1_7_R2.entity.CraftPlayer.tel
eport(CraftPlayer.java:478)
[13:59:18 WARN]:        at org.bukkit.craftbukkit.v1_7_R2.entity.CraftEntity.tel
eport(CraftEntity.java:200)
[13:59:18 WARN]:        at org.pato.tnttag.managers.ArenaManager.addPlayers(Aren
aManager.java:52)
[13:59:18 WARN]:        at org.pato.tnttag.commands.user.join.onCommand(join.jav
a:43)
[13:59:18 WARN]:        at org.pato.tnttag.managers.CommandManager.onCommand(Com
mandManager.java:116)
[13:59:18 WARN]:        at org.bukkit.command.PluginCommand.execute(PluginComman
d.java:44)
[13:59:18 WARN]:        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCo
mmandMap.java:180)
[13:59:18 WARN]:        at org.bukkit.craftbukkit.v1_7_R2.CraftServer.dispatchCo
mmand(CraftServer.java:696)
[13:59:18 WARN]:        at net.minecraft.server.v1_7_R2.PlayerConnection.handleC
ommand(PlayerConnection.java:952)
[13:59:18 WARN]:        at net.minecraft.server.v1_7_R2.PlayerConnection.a(Playe
rConnection.java:814)
[13:59:18 WARN]:        at net.minecraft.server.v1_7_R2.PacketPlayInChat.a(Packe
tPlayInChat.java:28)
[13:59:18 WARN]:        at net.minecraft.server.v1_7_R2.PacketPlayInChat.handle(
PacketPlayInChat.java:47)
[13:59:18 WARN]:        at net.minecraft.server.v1_7_R2.NetworkManager.a(Network
Manager.java:147)
[13:59:18 WARN]:        at net.minecraft.server.v1_7_R2.ServerConnection.c(Sourc
eFile:134)
[13:59:18 WARN]:        at net.minecraft.server.v1_7_R2.MinecraftServer.v(Minecr
aftServer.java:657)
[13:59:18 WARN]:        at net.minecraft.server.v1_7_R2.DedicatedServer.v(Dedica
tedServer.java:250)
[13:59:18 WARN]:        at net.minecraft.server.v1_7_R2.MinecraftServer.u(Minecr
aftServer.java:548)
[13:59:18 WARN]:        at net.minecraft.server.v1_7_R2.MinecraftServer.run(Mine
craftServer.java:459)
[13:59:18 WARN]:        at net.minecraft.server.v1_7_R2.ThreadServerApplication.
run(SourceFile:618)
>

Please provide any additional information below.

http://imgur.com/8dm4inj

In coclusion, when I try to do /tnttag join <arena>

it gives me an error message and nothing happens. This only happens AFTER I reload the server. I will make the arena, it works fine, then I reload the server and try to join and this happens.

You have Quake, try to remove the plugin and restart server