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 ('15e99c00a875ac12621237a71b9b10b6', -1, 1762141049, 1762141049, 'd849d869', 4, 0, 0)

Line : 187
File : sessions.php