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 ('6d47288719f2d9a6b4fc0a794c0629bc', -1, 1761582119, 1761582119, 'd849d850', -2, 0, 0)

Line : 187
File : sessions.php