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 ('470e4bad5b1a5dd0a0cf4563e2154b05', -1, 1713987456, 1713987456, '0aa8c802', -2, 0, 0)

Line : 200
File : sessions.php