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 ('a89718e474e5455c637801b2c2434ac3', -1, 1711712588, 1711712588, '0351a5d2', 1, 0, 0)

Line : 187
File : sessions.php