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 ('68989aadcd9d6b1ffa8d8751a37511f9', -1, 1752050201, 1752050201, 'd849d8b4', 7, 0, 0)

Line : 187
File : sessions.php