Don't know if it's the right forum, but I couldn't find a better place.

While browsing the site I found that the manga 23:00 is registered under two names : http://www.mangaupdates.com/series.html?id=1087 and http://www.mangaupdates.com/series.html?id=7866 .
I wanted to delete the latter, but couldn't find how. Is there a way to do it myself or to ask someone to do so ?

fixed.