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 ('88d3d23c9b0132c5b33ba452a1e230c5', -1, 1711713511, 1711713511, '0350ad19', -7, 0, 0)

Line : 187
File : sessions.php