phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '25ec6aef1c7978dbe75ff5aa7ee7839e' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('25ec6aef1c7978dbe75ff5aa7ee7839e', -1, 1781921986, 1781921986, 'd849d921', -9, 0)

Line : 180
File : /www/includes/sessions.php