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 ('e57955fe09228a06d8752f94b9b68ae4', -1, 1714184505, 1714184505, '127424dd', 3, 0, 0)

Line : 187
File : sessions.php