diff --git a/app/CustomFuncPao.php b/app/CustomFuncPao.php
index f0cd2d4c..d39f2301 100644
--- a/app/CustomFuncPao.php
+++ b/app/CustomFuncPao.php
@@ -1030,7 +1030,7 @@ class ArticleFormatter
             'quantity' => $quantity,
             'price' => $price,
             'color' => $quantity <= 0 ? 'red' : 'green',
-            'permalink' => $product['permalink']
+            'permalink' => isset($product['permalink']) ? $product['permalink'] : ''
         ];
     }