Reverting default service version in class ServiceFactory for URL to 5.0 because the current production host api.nameapi.org does not offer th v5.3 yet, only the rc53-api.nameapi.org does. To set a non-default host or version see the PersonRiskDetectorServiceTest for an example.

Author: fabiankessler

src/org/nameapi/client/services/ServiceFactory.php

@@ -81,7 +81,7 @@ public function __construct($apiKey, Context $context, Host $host=null, $apiVers
             $this->host = $host;
         }
         if ($apiVersion==null) {
-            $this->apiVersion = '5.3';
+            $this->apiVersion = '5.0';
         } else {
             $this->apiVersion = $apiVersion;
         }