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 ('6fe76fcdc9b7f54a7e5f701ea6e45ae5', -1, 1739991169, 1739991169, '126109af', -8, 0, 0)

Line : 187
File : sessions.php