phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('e68e0bdef9a8a1be66e6219ed5ffb459', -1, 1714555584, 1714555584, '0391aff3', -10, 0)

Line : 158
File : sessions.php