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 ('527a6d5ead4741cc6facda91efe7564b', -1, 1714076215, 1714076215, '0390e996', -4, 0)

Line : 158
File : sessions.php