O-Like's site has been down for ages now, the machine referenced in the DNS is not responding, as are any of the other sites hosted on it. Recently hasn't been a good time for Chinese hosts for some reason, Rayfoss is down too - apparently there's been an online crackdown against spam/e-crime, and many sites are having issues.
If O-Like or Rayfoss want a bit of tech help, email or PM me, and I can offer you a temporary "landing page" explaining to your customers what the situation is, along with contact details, until you can get your hosting sorted. This depends if you still have access to DNS settings, however.