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 ('b1a52b67f8604b0e56601edea57ad263', -1, 1606168191, 1606168191, '23992707', 41, 0, 0)

Line : 189
File : sessions.php