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 ('3ff6e10f3ef5547b42075059d946a4dc', -1, 1757903633, 1757903633, 'd849d828', -9, 0, 0)

Line : 187
File : sessions.php