diff --git a/backend/shop/views.py b/backend/shop/views.py
index 0e978d1..aca8d2d 100644
--- a/backend/shop/views.py
+++ b/backend/shop/views.py
@@ -1466,7 +1466,22 @@ class DistributorViewSet(viewsets.GenericViewSet):
             
             distributor = user.distributor
             if distributor.qr_code_url:
-                return Response({'qr_code_url': distributor.qr_code_url})
+                # 检查文件是否真的存在
+                try:
+                    # 如果是本地存储，检查文件路径
+                    if distributor.qr_code_url.startswith(settings.MEDIA_URL):
+                        file_path = distributor.qr_code_url.replace(settings.MEDIA_URL, '', 1)
+                        if default_storage.exists(file_path):
+                            return Response({'qr_code_url': distributor.qr_code_url})
+                    elif distributor.qr_code_url.startswith('http'):
+                        # 远程 URL，假设有效
+                        return Response({'qr_code_url': distributor.qr_code_url})
+                except Exception as e:
+                    logger.warning(f"Error checking QR code existence: {e}")
+                
+                # 如果文件不存在，重置 URL 并重新生成
+                distributor.qr_code_url = ''
+                distributor.save()
             
             # 确保有邀请码
             if not distributor.invite_code:
diff --git a/miniprogram/config/index.js b/miniprogram/config/index.js
index 3a0295d..552c4a8 100644
--- a/miniprogram/config/index.js
+++ b/miniprogram/config/index.js
@@ -32,6 +32,11 @@ const config = {
     enable: false // Disable cache to fix prebundle error
   },
   mini: {
+    compile: {
+      include: [
+        path.resolve(__dirname, '..', 'node_modules/marked')
+      ]
+    },
     postcss: {
       pxtransform: {
         enable: true,