Hey guys, I just want to start by saying I'm very, very sorry that we haven't responded to this thread yet. If you're ever waiting over 24 hours for a response from support, please feel free to send one of us a PM by using the envelope icon below our posts. If you send us a link, we will definitely take a look.
Having read over this thread, I'm afraid that the issue appears to be with the app itself, and not with the LIVE service. If you aren't experiencing issues installing or booting app, and if you don't have an issue with other apps besides Youtube, then you'll want to contact Youtube Help for assistance with this in-app issue.
Again guys, a very heart-felt apology at not seeing this thread for so long. We're always available via PM, so please don't hesitate to hit us up. :-)