I’m attempting to set up Google Checkout for one of the sites on Magento. The callback URL I was told to use is: https://festools-online.com/index.php/googlecheckout/api
When I do a test order, it’s entered into Google just fine but doesn’t show up in Magento at all. And I receive the following error:
We encountered an error trying to access your server at https://festools-online.com/index.php/googlecheckout/api—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
Can anyone tell me what’s causing this?