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 ('50a8a89ba1b4b3bb3cd3a2d5d5b1fdc0', -1, 1713977343, 1713977343, '0aa8c802', -10, 0, 0)

Line : 200
File : sessions.php