404. That’s an error.
The requested URL /add?source=atgs&feedurl=https://rongbay.com/rss/Binh-Thuan/c307_Dich-vu-sua-chua.rss was not found on this server. That’s all we know.
/add?source=atgs&feedurl=https://rongbay.com/rss/Binh-Thuan/c307_Dich-vu-sua-chua.rss