Feeds with XML errors reporting many times every day

When an RSS feed has an XML error like the one in the feed below, NewsBlur is reporting the last “cut off” feed multiple times per day as a new feed.

Feed example: http://www.mangahere.co/rss/uq_holder…

And when I try to load it up in NewsBlur it looks like this forever:

I’ll be informing their website about it too.