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 ('54305c8c1ffecb12c4258bc65a487dc3', -1, 1713983852, 1713983852, '0aa8c802', 17, 0, 0)

Line : 200
File : sessions.php