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 ('830ee86d4cac97d003946681198511fb', -1, 1711713551, 1711713551, '2cde76c2', 4, 0, 0)

Line : 187
File : sessions.php