"invalid video"

I posted a movie a little while ago today, but it would always stop at the same point. So I deleted it and tried reposting it. Now I get a blank white page that says "invalid video".

I have tried going to my general movies page, and I can. However, the "invalid video" fails to show up on that page, and I just see the previous two movies I'd uploaded before (days ago, that work fine).

I apologize if I did something wrong. If you could delete it for me, so I could try reposting under a different name, that would be great.

Thanks.