Fanpop censorship

One of my videos just got deleted, without any explanation, or any notification at all in my mailbox, nothing at all. It wasn't even a broken link. I just finished watching it on YouTube to make sure. Looks like it got deleted by the site itself. It was a full episode of a TV show that I like a lot. I don't get it. Are there some YouTube videos which are off limit for us users on this site, or maybe just for some newbie like me? Do you have some rule against adding videos which are too long, like some full episode, or some full movie? And if you do, then just how much is too long for this site? I don't know anything about that. That's why I'm asking you for help. Tell me what I did wrong, because it doesn't make any sense to me.