diff --git a/themes/googleimage/views/site/index.php b/themes/googleimage/views/site/index.php
index 5c8bd92..7b225c3 100644
--- a/themes/googleimage/views/site/index.php
+++ b/themes/googleimage/views/site/index.php
@@ -83,6 +83,10 @@ eof;
 					if (in_array($first_img['extension'], $imgExts)) {
 						echo <<<eof
 	<img data-src="{$first_img['path']}" class="lazyload" alt="{$first_img['filename']}">
+eof;
+                    }else {
+                        echo <<<eof
+    <img src="/img/default.png" alt="default image">
 eof;
 					}
 				}
diff --git a/themes/videoblog/controller/ListController.php b/themes/videoblog/controller/ListController.php
index c219e98..0874b30 100644
--- a/themes/videoblog/controller/ListController.php
+++ b/themes/videoblog/controller/ListController.php
@@ -97,7 +97,7 @@ Class ListController extends Controller {
                 'url' => $parent['path'],
             ]);
 
-            $parent = !empty($menus[$parent['pid']]) ? $menus[$parent['pid']] : null;
+            $parent = !empty($parent['pid']) && !empty($menus[$parent['pid']]) ? $menus[$parent['pid']] : null;
         }
 
         return $breads;
diff --git a/themes/videoblog/views/site/index.php b/themes/videoblog/views/site/index.php
index a633f44..58bb4e1 100644
--- a/themes/videoblog/views/site/index.php
+++ b/themes/videoblog/views/site/index.php
@@ -101,6 +101,10 @@ eof;
 					if (in_array($first_img['extension'], $imgExts)) {
 						echo <<<eof
 	<img data-src="{$first_img['path']}" class="lazyload" alt="{$first_img['filename']}">
+eof;
+                    }else {
+                        echo <<<eof
+        <img src="/img/default.png" alt="default image">
 eof;
 					}
 				}
@@ -133,7 +137,9 @@ eof;
 				}
 
 				$duration = !empty($category['duration']) ? $category['duration'] : '';
-				$snapshot = !empty($file['snapshot']) ? $file['snapshot'] : (!empty($category['snapshot']) ? $category['snapshot'] : $first_img['path']);
+				$snapshot = !empty($file['snapshot']) ? $file['snapshot'] : (!empty($category['snapshot']) ? $category['snapshot'] :
+                            (!empty($first_img['path']) ? $first_img['path'] : '/img/default.png')
+                        );
 
 				$title = !empty($category['title']) ? $category['title'] : $file['filename'];
 				echo <<<eof
diff --git a/www/css/videoblog.css b/www/css/videoblog.css
index 347c1d7..5ed6a32 100644
--- a/www/css/videoblog.css
+++ b/www/css/videoblog.css
@@ -24,7 +24,7 @@ a{color: #aaadb2;text-decoration: none}
 .img-item{display: inline-block;margin-left: 10px;margin-right: 10px;margin-bottom: 20px;cursor: pointer}
 .img-item img{height: 180px;object-fit: cover;}
 .img-item strong{display: block;color: #bdc1c6;font-family: Roboto,Arial,sans-serif;font-size: 12px;letter-spacing: .2px;line-height: 20px;overflow: hidden;text-overflow: ellipsis;white-space: nowrap}
-.img-item .img-con{display:block;position: relative;width: 100%;height: auto}
+.img-item .img-con{display:block;position: relative;width: 100%;height: auto;text-align:center}
 .img-item .duration{display: block;position: absolute;right: 2px;bottom: 5px;background-color: #000;opacity: 0.6;padding: 1px 3px;color: #FFF;border-radius:3px;font-weight: bold;}
 .img-item:hover .vjs-big-play-button{display: inherit !important}
 .catedesc{padding: 0 10px}
@@ -47,4 +47,4 @@ a{color: #aaadb2;text-decoration: none}
 @media only screen and (min-width: 768px) and (max-width: 1024px) {
     .menu{font-size: 14px}
     .img-item strong{font-size: 13px;}
-}
\ No newline at end of file
+}