diff --git a/module/VuFind/src/VuFind/Controller/Plugin/Renewals.php b/module/VuFind/src/VuFind/Controller/Plugin/Renewals.php
index 888c8dc840d659be92a1c1cf8edb2500cb61b853..20c006454f21c59634424b69f38b5ef6aa1375c9 100644
--- a/module/VuFind/src/VuFind/Controller/Plugin/Renewals.php
+++ b/module/VuFind/src/VuFind/Controller/Plugin/Renewals.php
@@ -113,7 +113,7 @@ class Renewals extends AbstractPlugin
                 return $renewResult['details'];
             } else {
                 // System failure:
-                $flashMsg->setNamespace('error')->addMessage('renew_system_error');
+                $flashMsg->setNamespace('error')->addMessage('renew_error');
             }
         } else if (!empty($all) || !empty($selected)) {
             // Button was clicked but no items were selected:
diff --git a/module/VuFind/src/VuFind/ILS/Driver/VoyagerRestful.php b/module/VuFind/src/VuFind/ILS/Driver/VoyagerRestful.php
index 9d99c673b607dc4bbbbf5cb7d4a820982e92faf7..8371457fe325de56e02dae5a90754ff12e4bd0d4 100644
--- a/module/VuFind/src/VuFind/ILS/Driver/VoyagerRestful.php
+++ b/module/VuFind/src/VuFind/ILS/Driver/VoyagerRestful.php
@@ -1300,7 +1300,7 @@ EOT;
                 array('AuthenticatePatronService' => false), array(), 'POST', $xml
             );
             if ($response === false) {
-                throw new ILSException('renew_error_system');
+                throw new ILSException('renew_error');
             }
 
             $xml = <<<EOT
@@ -1324,7 +1324,7 @@ EOT;
                 array('RenewService' => false), array(), 'POST', $xml
             );
             if ($response === false) {
-                throw new ILSException('renew_error_system');
+                throw new ILSException('renew_error');
             }
 
             // Process
@@ -1336,7 +1336,9 @@ EOT;
             // The service doesn't actually return messages (in Voyager 8.1),
             // but maybe in the future...
             foreach ($response->xpath('//ser:message') as $message) {
-                if ($message->attributes()->type == 'system') {
+                if ($message->attributes()->type == 'system'
+                    || $message->attributes()->type == 'error'
+                ) {
                     return false;
                 }
             }