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) VALUES ('47c2a4e016f396a7c7dc54ebef3a7c3e', -1, 1714282181, 1714282181, '12d9d293', -9, 0)

Line : 158
File : sessions.php