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 ('a803df8713f4b1c0b9d4c93d9b860e81', -1, 1711704794, 1711704794, '12ce4c2d', 10, 0, 0)

Line : 187
File : sessions.php