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 ('51adf414937d9c21638c07e95e97b368', -1, 1740002776, 1740002776, '126109aa', -2, 0, 0)

Line : 187
File : sessions.php