phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '12c468c8901923760ffda2fa32184a28' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('12c468c8901923760ffda2fa32184a28', -1, 1768266097, 1768266097, 'd849d8a4', -9, 0)

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