The host probably went offline. Wait some hours or a day or re-search so you might hopefully find more sources. See the following link & follow “ALL” the off-shoot links to find hints & extra skills to help solve your problem: To continue files downlding (click on link)

Do an experiment, downld a magnet link from here & see what happens: http://www.magnetmix.com/video.shtml
If you get "need more sources" then the problem is most likely your isp.