Error on join, 1.3.1 dev build

Hello, I updated my dedicated server to the latest craftbukkit 1.3.1 dev build and everything loads perfectly. But then when the first person joins the server the client says 'End of stream' I checked the console and this error came up.

http://pastie.org/4382286

Note I am using Linux ( Centos 6 ).

md_5

 

Not nice to tag everyone

 

were do you get it from and i will try it with hamchi

 

But editing the post after the fact doesn't help, because it's already fired the tag event. You confused me for a minute there

 

Same thing happens for deleted posts, get those mystery tags all the time

 

Orebfuscator causes this problem for me, i just deleted it and now it's all fine