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 ('b69a50f4e6d5684d005a4a36c7d864d6', -1, 1758083152, 1758083152, 'd849d828', 6, 0, 0)

Line : 187
File : sessions.php