phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('2b452a1c6ce21dda043d3e4bc1a78459', -1, 1715063793, 1715063793, '12e2de0c', 8, 0, 0)

Line : 189
File : sessions.php