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 ('882747ea30a46b51b20982c88f0d9359', -1, 1762140967, 1762140967, 'd849d869', 3, 0, 0)

Line : 187
File : sessions.php