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 ('46e2266d6dd4082af1a7fc8c527b9564', -1, 1762582812, 1762582812, 'd849d81c', 3, 0, 0)

Line : 187
File : sessions.php