Talking on client/server crashes client

As said above, when i try to talk in chat on the server useing my vanilla client i crash, if anyone else trys thay crash as well. not to shure what is makeing the issue. but a fix, or some info woulf be loved! and its reandom, some times the chat works jsut fine, outhers its broken, then will selffix later. a restart fixes it for a wile. dont want to restart every tiem it happens

Liunx, Centos, 64bit, server set-to 12gb ram, 20 player avg. dedi server

 

What is in the server log when that happens? What is the client crash message? What plugins are you running? What version of CraftBukkit are you running? When did this start?

 

craft bukkit 1.4.7 1.4.7R1.0
lagmeter, simplebackup, worldedit, coreprotect, Hexrestrict, autosaveing, Vault, essentials, simplevotelistener, essentialsprotect, essentialsspawn, Enjin minecraft plugin, essentialschat, permissionsEx, griefprevention, scheduled announcer, Votifier.

Crash message server side, (username) lost connection: dissconnect.generic reason
Client side, just gets dissconnected not a full crash, rejoin right after is ok

Note: have to use /me to talk

 

Try disabling all plugins, and seeing if that works.

 

Ok, i have disaled all plugins, and even installed a fresh new server jar. still no idea >.>

the OS is Centos, could that be the issue?

 

You haven't posted a full server.log, you really need to post one along with other relevant information.

 

http://pastebin.com/pF8hDXUM
http://pastebin.com/Xa12D74J

 

You're not running CraftBukkit. Ask the mod authors for support.