phpBB : Erro Crítico

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 2

INSERT INTO f_activesessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('ad8ebea9a1952c3a8136d0b44544c160', -1, 1762140479, 1762140479, 'd849d8df', -9, 0, 0)

Line : 187
File : sessions.php