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 ('b0d7347f8c298979ef7728e05ca6a05d', -1, 1713877140, 1713877140, '0391177b', -2, 0, 0)

Line : 172
File : sessions.php