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 ('668b3f235a5642540f85e7a109009302', -1, 1711710918, 1711710918, '035018f4', -9, 0, 0)

Line : 187
File : sessions.php