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 ('176968cf440e4d7b221c2a4f6573b2a8', -1, 1750045410, 1750045410, 'd849d8da', -9, 0, 0)

Line : 190
File : sessions.php