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 ('b239f549f34f6220eb9477d9f1510292', -1, 1762323512, 1762323512, 'd849d892', -4, 0, 0)

Line : 187
File : sessions.php