SQL info: MySQL Query Error

Time: 2009-1-9 6:28pm
Script: /information.php

SQL: INSERT INTO t_session (sid,uid,islogin,isadmin, updated, sessiondata ) VALUES ('ec0bad','','','', '1231496926', 'a:0:{}')
Error: Duplicate entry 'ec0bad' for key 1
Errno.: 1062