diff --git a/webapp/controller/OutAppNftController.class.php b/webapp/controller/OutAppNftController.class.php
index df97a43e..5961b4f6 100644
--- a/webapp/controller/OutAppNftController.class.php
+++ b/webapp/controller/OutAppNftController.class.php
@@ -154,7 +154,11 @@ class OutAppNftController extends BaseController {
             "attributes" => array(),
         );
         $nftDb = Nft::getNftByNetIdTokenTypeTokenId($netId, $tokenType, $tokenId);
-        switch ($tokenType) {
+        if (empty($nftDb)) {
+            echo json_encode($info);
+            die;
+        }
+        switch ($nftDb['token_type']) {
         case Nft::HERO_TYPE:
         case Nft::GCARD_HERO_TYPE:
         {