phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO blitz_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('12c25d9bc462fa24e2dc13d06ed2cdab', -1, 1713983934, 1713983934, '0aa8c802', 43, 0, 0)

Line : 200
File : sessions.php