My client crashed when I'm adding torrent

[SuperblyBonkers]

So,long story short,it crashed when I was adding multiple torrent file,it just froze up and crashed.But,it's not the problem.The problem is that on my taskbar,the utorrent client is seeding 18 file(that's the amount of file that got stuck,I guess).

So,what do I do to make it stop seeding?Because,the utorrent isn't showing those files.

Also,when I try to add the same torrent,it says that the file still exist in the utorrent.