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 ('e812d31f6592ee7b6af1c9e38a9c353a', -1, 1752528959, 1752528959, 'd849d840', -4, 0, 0)

Line : 187
File : sessions.php