diff --git a/application/controllers/information.php b/application/controllers/information.php
index d0301f55..2a613e05 100644
--- a/application/controllers/information.php
+++ b/application/controllers/information.php
@@ -990,7 +990,7 @@ class Information extends CI_Controller
       $tipsRightList = [];
       for ($i=1; $i <= 36; $i++) { 
         $key = 'List Tips Right '.$i;
-        if (array_key_exists($key, $recommand_information)) {
+        if (array_key_exists($key, $recommand_information) && $recommand_information[$key]) {
           $tipsRightList[] = $recommand_information[$key];
         }
       }