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 ('66ee70386e8223cf10dc42bc5f4595dc', -1, 1767892765, 1767892765, 'd849d802', 1, 0, 0)

Line : 187
File : sessions.php