Liberty Reserve is once again under ddos attack.
Please read what was posted on their blog earlier today (http://blog.libertyreserve.com/):
We are currently experiencing a ddos attack that has intensified recently, as a result of which you may have limited access to our web site. We are aware of the situation and working on a quick solution. Thank you for your patience.
We sincerely apologize for any inconvenience this outage may have caused you.