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, session_admin) VALUES ('6febc5670419e6540d45ca85b1843960', -1, 1713497934, 1713497934, '03912ffd', -10, 0, 0)

Line : 187
File : sessions.php