diff --git a/airtime_mvc/application/controllers/BillingController.php b/airtime_mvc/application/controllers/BillingController.php
index ca2f7594d..fd7f90c10 100644
--- a/airtime_mvc/application/controllers/BillingController.php
+++ b/airtime_mvc/application/controllers/BillingController.php
@@ -572,6 +572,7 @@ class BillingController extends Zend_Controller_Action {
         try {
             $ch = curl_init();
             curl_setopt($ch, CURLOPT_URL, $url);
+            curl_setopt($ch, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4 ); // WHMCS IP whitelist doesn't support IPv6
             curl_setopt($ch, CURLOPT_POST, 1);
             curl_setopt($ch, CURLOPT_TIMEOUT, 5); //Aggressive 5 second timeout
             curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
@@ -598,4 +599,4 @@ class BillingController extends Zend_Controller_Action {
             throw new Exception("Invalid client ID: " . Application_Model_Preference::GetClientId());
         }
     }
-}
\ No newline at end of file
+}
diff --git a/airtime_mvc/application/controllers/ShowbuilderController.php b/airtime_mvc/application/controllers/ShowbuilderController.php
index 09314a432..b88d4e2e7 100644
--- a/airtime_mvc/application/controllers/ShowbuilderController.php
+++ b/airtime_mvc/application/controllers/ShowbuilderController.php
@@ -35,7 +35,7 @@ class ShowbuilderController extends Zend_Controller_Action
         $user = Application_Model_User::GetCurrentUser();
         $userType = $user->getType();
         $this->view->headScript()->appendScript("localStorage.setItem( 'user-type', '$userType' );");
-        //$this->view->headScript()->appendScript($this->generateGoogleTagManagerDataLayerJavaScript());
+        $this->view->headScript()->appendScript($this->generateGoogleTagManagerDataLayerJavaScript());
 
         $this->view->headScript()->appendFile($baseUrl.'js/contextmenu/jquery.contextMenu.js?'.$CC_CONFIG['airtime_version'],'text/javascript');
         $this->view->headScript()->appendFile($baseUrl.'js/datatables/js/jquery.dataTables.js?'.$CC_CONFIG['airtime_version'],'text/javascript');
@@ -439,6 +439,7 @@ class ShowbuilderController extends Zend_Controller_Action
             $ch = curl_init();
             curl_setopt($ch, CURLOPT_URL, $url);
             curl_setopt($ch, CURLOPT_POST, 1);
+            curl_setopt($ch, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4 ); // WHMCS IP whitelist doesn't support IPv6
             curl_setopt($ch, CURLOPT_TIMEOUT, 5); //Aggressive 5 second timeout
             curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
             curl_setopt($ch, CURLOPT_POSTFIELDS, $query_string);
diff --git a/airtime_mvc/application/controllers/WhmcsLoginController.php b/airtime_mvc/application/controllers/WhmcsLoginController.php
index b8573c557..0b8a00a83 100644
--- a/airtime_mvc/application/controllers/WhmcsLoginController.php
+++ b/airtime_mvc/application/controllers/WhmcsLoginController.php
@@ -155,6 +155,7 @@ class WHMCS_Auth_Adapter implements Zend_Auth_Adapter_Interface {
         
         $ch = curl_init();
         curl_setopt($ch, CURLOPT_URL, WHMCS_API_URL);
+        curl_setopt($ch, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4 ); // WHMCS IP whitelist doesn't support IPv6
         curl_setopt($ch, CURLOPT_POST, 1);
         curl_setopt($ch, CURLOPT_TIMEOUT, 30);
         curl_setopt($ch, CURLOPT_FAILONERROR, 1);
@@ -164,7 +165,8 @@ class WHMCS_Auth_Adapter implements Zend_Auth_Adapter_Interface {
         curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
         $jsondata = curl_exec($ch);
         if (curl_error($ch)) {
-            die(curl_getinfo($ch, CURLINFO_EFFECTIVE_URL));
+            Logging::error("Failed to reach WHMCS server in " . __FUNCTION__ . ": "
+                            . curl_errno($ch) . ' - ' . curl_error($ch) . ' - ' . curl_getinfo($ch, CURLINFO_EFFECTIVE_URL));
             //die("Connection Error: ".curl_errno($ch).' - '.curl_error($ch));
         }
         curl_close($ch);
@@ -201,6 +203,7 @@ class WHMCS_Auth_Adapter implements Zend_Auth_Adapter_Interface {
     
         $ch = curl_init();
         curl_setopt($ch, CURLOPT_URL, WHMCS_API_URL);
+        curl_setopt($ch, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4 ); // WHMCS IP whitelist doesn't support IPv6
         curl_setopt($ch, CURLOPT_POST, 1);
         curl_setopt($ch, CURLOPT_TIMEOUT, 30);
         curl_setopt($ch, CURLOPT_FAILONERROR, 1);
@@ -210,7 +213,8 @@ class WHMCS_Auth_Adapter implements Zend_Auth_Adapter_Interface {
         curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
         $jsondata = curl_exec($ch);
         if (curl_error($ch)) {
-            die(curl_getinfo($ch, CURLINFO_EFFECTIVE_URL));
+            Logging::error("Failed to reach WHMCS server in " . __FUNCTION__ . ": "
+                            . curl_errno($ch) . ' - ' . curl_error($ch) . ' - ' . curl_getinfo($ch, CURLINFO_EFFECTIVE_URL));
             //die("Connection Error: ".curl_errno($ch).' - '.curl_error($ch));
         }
         curl_close($ch);
@@ -255,4 +259,4 @@ class WHMCS_Auth_Adapter implements Zend_Auth_Adapter_Interface {
         }
         return false;
     }
-}
\ No newline at end of file
+}