diff --git a/bin/upgrade.sh b/bin/upgrade.sh
index 97b3796..243c58a 100755
--- a/bin/upgrade.sh
+++ b/bin/upgrade.sh
@@ -25,10 +25,19 @@ detectDomainCanConnect () {
 }
 
 
-mkdir -p /var/www/downloads
+if [ ! -d /var/www/downloads ]; then
+    mkdir -p /var/www/downloads
+fi
+
 cd /var/www/downloads/
-rm -f master.tar.gz
-rm -rf machete/
+
+if [ -f master.tar.gz ]; then
+    rm -f master.tar.gz
+fi
+
+if [ -d machete/ ]; then
+    rm -rf machete/
+fi
 
 # 升级machete
 detect_domain="git.filesite.io"
@@ -47,7 +56,7 @@ if [ -f "master.tar.gz" ]; then
 
     tar -zxvf master.tar.gz
     rm -f master.tar.gz
-    rsync -vruL machete/* /var/www/machete/ \
+    rsync -vrL machete/* /var/www/machete/ \
         --exclude=www/content/ \
         --exclude=www/navs/ \
         --exclude=www/girls/ \
diff --git a/themes/beauty/views/site/index.php b/themes/beauty/views/site/index.php
index 19f0f2d..40254d9 100644
--- a/themes/beauty/views/site/index.php
+++ b/themes/beauty/views/site/index.php
@@ -120,9 +120,16 @@ eof;
                 'directories' => $viewData['menus'],
                 'files' => $viewData['scanResults'],
             );
-        }else if (!empty($selectedId) && empty($category['directories']) && empty($category['files'])) {
+        }else if (empty($category['directories']) && $total == 0) {
             echo <<<eof
-    <div class="alert alert-warning">此目录下没有图片和视频哦，复制照片目录或文件到目录里刷新网页即可。</div>
+    <div class="alert alert-warning">
+        <h2>咦？没有图片或视频</h2>
+        <p class="mt-2">
+            空目录吗？复制照片目录或文件到目录后点右上角“<img width="18" src="/img/beauty/refresh.svg" alt="清空缓存数据" title="刷新缓存数据">刷新”图标清空缓存。
+            <br>
+            如果不是空目录，点右上角“<img width="18" src="/img/beauty/refresh.svg" alt="清空缓存数据" title="刷新缓存数据">刷新”图标清空缓存，网页有 10 分钟缓存。
+        </p>
+    </div>
 eof;
         }