Fatal Error in nusoap initializing new soapclient? Any help?

Fatal error: Uncaught SoapFault exception: [WSDL] SOAP-ERROR: Parsing WSDL:

[AcsCh]

I'm using Nusoap with PHP and get the following error when I initialize the class with

(line 144)
$soapclient = new soapclient("http://api.google.com/search/beta2");

Fatal error: Uncaught SoapFault exception: [WSDL] SOAP-ERROR: Parsing WSDL: Couldn't find in 'http://api.google.com/search/beta2' in /home/httpdocs/GetGoogleResults.inc.php:144 Stack trace: #0 /home/httpdocs/GetGoogleResults.inc.php(144): SoapClient->__construct('http://api.goog...') #1 {main} thrown in /home/httpdocs/GetGoogleResults.inc.php on line 144

Anybody experienced something similar? Any idea what's this and how to fix?

I use exactely the same code in another project on another server without any problem.

Any help very very appreciated!
Thanks a lot!
Fred