phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('7647d6ebba2cb579e8c97a377f1e9dad', -1, 1749450921, 1749450921, 'd849d874', 3, 0, 0)

Line : 190
File : sessions.php