SQL info: MySQL Query Error

Time: 2008-11-24 4:52am
Script: /hotel.php

SQL: INSERT INTO t_session (sid,uid,islogin,isadmin, updated, sessiondata ) VALUES ('6bc403','','','', '1227473526', 'a:0:{}')
Error: Duplicate entry '6bc403' for key 1
Errno.: 1062