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 ('c9731eff4e9959fe9b82f4d9012909b6', -1, 1711719415, 1711719415, '2cdea136', 1, 0, 0)

Line : 187
File : sessions.php