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 ('7088c7ee4b34b18493d02bf84c35c177', -1, 1713983542, 1713983542, '0aa8c802', -4, 0, 0)

Line : 200
File : sessions.php