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 ('0455681cf6318bd7ed744100d22ab8c5', -1, 1713452854, 1713452854, '03910fcd', -11, 0, 0)

Line : 187
File : sessions.php