404. That’s an error.
The requested URL /add?feedurl=http://thuoccapdientu-insize.sieuthithietbido.com/thuoc-cap-dien-tu-insize-1117-601.rss was not found on this server. That’s all we know.
/add?feedurl=http://thuoccapdientu-insize.sieuthithietbido.com/thuoc-cap-dien-tu-insize-1117-601.rss