this is the error i get

We encountered an error trying to access your server at https://www.smartbuyeruk.com/googlec...nsehandler.php -- the error we got is javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target


i was told this was a certificate problem as GC only accepts these http://checkout.google.com/support/s...n&answer=57856

Go Daddy Class 2 CA is what i have got but still get this error