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 ('0d87ff64482ec5cad9ac40bc63e59f3a', -1, 1762199191, 1762199191, 'd849d872', 7, 0, 0)

Line : 187
File : sessions.php