Fatal error: Uncaught Error: Class 'nusoap_base' not found in C:\xampp\htdocs\ecommerce\sigep\nusoap\lib\class.soapclient.php:26 Stack trace: #0 {main} thrown in C:\xampp\htdocs\ecommerce\sigep\nusoap\lib\class.soapclient.php on line 26