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 ('cc9f10ff349d7ce825a4bc82b373f1e7', -1, 1713358029, 1713358029, '03eeebf8', -1, 0, 0)

Line : 187
File : sessions.php