diff --git a/code/SilverChimpSubscriptionPage.php b/code/SilverChimpSubscriptionPage.php
index 42ce3b0..a22801d 100644
--- a/code/SilverChimpSubscriptionPage.php
+++ b/code/SilverChimpSubscriptionPage.php
@@ -197,6 +197,11 @@ function Form() {
         }
 
         $mergeVars = $this->api->listMergeVars($this->ListID);
+        
+        if(false === $mergeVars) {
+            return $this->api->errorMessage;
+        }
+        
         $fields = array();
         $required = array();
         
@@ -342,7 +347,7 @@ function SubscribeAction($raw_data, $form) {
             
         } else {
             //    failure!
-            $form->sessionMessage($this->api->errorMessage, 'warning');
+            $form->sessionMessage($this->api->errorMessage, 'warning', false);
             return $this;
         }
     }