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 ('18bb1f9b27e255f1605194d993e9b548', -1, 1711701511, 1711701511, '03e3fbc2', -9, 0, 0)

Line : 187
File : sessions.php