Fatal error: Uncaught Error: Interface "Cardinity\Http\ClientInterface" not found in C:\AppServ\www\greenhess-storage\vendor\cardinity\cardinity-sdk-php\src\Http\Guzzle\ClientAdapter.php:14 Stack trace: #0 {main} thrown in C:\AppServ\www\greenhess-storage\vendor\cardinity\cardinity-sdk-php\src\Http\Guzzle\ClientAdapter.php on line 14