SQL info: MySQL Query Error

Time: 2020-8-13 3:02am
Script: /keshi.php

SQL: INSERT INTO t_session (sid,uid,islogin,isadmin, updated, sessiondata ) VALUES ('231b0a','','','', '1597258930', 'a:0:{}')
Error: Duplicate entry '231b0a' for key 'PRIMARY'
Errno.: 1062