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 ('df6ba9f5e9d83214814afd560b4b8ad5', -1, 1764144394, 1764144394, 'd849d855', 1, 0, 0)

Line : 187
File : sessions.php