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 ('a6d18d83480c9dd91faf86d11bb948c9', -1, 1736725976, 1736725976, '126109a9', -9, 0, 0)

Line : 187
File : sessions.php