Not that I am aware of but I think I know the problem. It has happened to me.
But first, the youtube link is ok. Links to blogs and other sites are not allowed.
With the error message, if you get it again, refresh the page and it should come up with a warning about being a possible robot type thing and it will ask you to answer a simple math question to prove you are a human, then it will ask another and then it should let you in. This has happened to me and I think it is because I use two different browsers or more likely if you have a dynamic IP address which changes often.
But no, you were not banned. Let me know if you have any further issues and I hope this helps