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 ('e86ab16d2f0e0ad27d7b06d5958aed8f', -1, 1762168128, 1762168128, 'd849d833', 3, 0, 0)

Line : 187
File : sessions.php