diff --git a/app/common/repositories/store/product/ProductRepository.php b/app/common/repositories/store/product/ProductRepository.php
index 735faf8..5f8a4a4 100644
--- a/app/common/repositories/store/product/ProductRepository.php
+++ b/app/common/repositories/store/product/ProductRepository.php
@@ -668,11 +668,11 @@ class ProductRepository extends BaseRepository
                 // if(isset($value['value_id']) && $value['value_id'] !== '' && isset($value['copy_value_id']) && $value['copy_value_id'] !== '') $array['copy_value_id'] = $value['value_id'];
 
                 if($isWith){
-                    $array['copy_unique'] = $value['unique'];
-                    $array['copy_value_id'] = $value['value_id'];
+                    $array['copy_unique'] = $value['unique'] ?? '';
+                    $array['copy_value_id'] = $value['value_id'] ?? '';
                 }else{
-                    $array['copy_unique'] = $value['copy_unique'];
-                    $array['copy_value_id'] = $value['copy_value_id'];
+                    $array['copy_unique'] = $value['copy_unique'] ?? '';
+                    $array['copy_value_id'] = $value['copy_value_id'] ?? '';
                 }