404. That’s an error.
The requested URL /add?feedurl=http://www.ripi.ir%2Findex.php%2Fcomponent%2Fobrss%2Fenergy-news was not found on this server. That’s all we know.
/add?feedurl=http://www.ripi.ir%2Findex.php%2Fcomponent%2Fobrss%2Fenergy-news