diff --git a/webapp/services/LogService.php b/webapp/services/LogService.php
index 03fbdb17..3c6db6b8 100644
--- a/webapp/services/LogService.php
+++ b/webapp/services/LogService.php
@@ -181,9 +181,9 @@ class LogService extends BaseService
             'nft_unique_id' => $old_nft['idx'],                                     //NFT idx
             'nft_token_id' => $old_nft['token_id']?$old_nft['token_id']:null,       //NFT token ID
             'nft_item_id' => $old_nft['item_id']?$old_nft['item_id']:null,                                   //NFT item ID
-            'nft_quality' => $old_nft['quality'] ? $old_nft['quality'] : null,     //NFT品阶
+            'nft_quality' => isset($old_nft['quality']) ? $old_nft['quality'] : null,     //NFT品阶
             'nft_level' => $old_nft['level'] ? $old_nft['level'] : null,            //NFT等级
-            'nft_quality2' => $new_nft['quality'] ? $new_nft['quality'] : null,    //NFT品阶2
+            'nft_quality2' => isset($new_nft['quality']) ? $new_nft['quality'] : null,    //NFT品阶2
             'nft_level2' => $new_nft['level'] ? $new_nft['level'] : null,           //NFT等级2
             'nft_info' => json_encode($old_nft),
             'new_nft' => json_encode($new_nft)