diff --git a/module/install/js/app.js b/module/install/js/app.js
index b26f858b16..dc4bad23eb 100644
--- a/module/install/js/app.js
+++ b/module/install/js/app.js
@@ -46,6 +46,7 @@ $(function()
  */
 function checkMemory()
 {
+    $('#submitBtn').attr('disabled', true);
     var apps = [];
     $.each(category, (index, cate) => 
     {
diff --git a/module/install/view/app.html.php b/module/install/view/app.html.php
index 72f1699c8d..c29c2139c4 100644
--- a/module/install/view/app.html.php
+++ b/module/install/view/app.html.php
@@ -48,7 +48,7 @@
         </table>
         <div class='text-center form-actions'>
           <?php echo html::a(inlink('step6'), $lang->install->solution->skip, '', "id='skipBtn' class='btn btn-install btn-wide' style='display:none;'");?>
-          <?php echo html::commonButton($lang->solution->install, "id='submitBtn'", 'btn btn-primary btn-wide')?>
+          <?php echo html::commonButton($lang->solution->install, "id='submitBtn' disabled=disabled", 'btn btn-primary btn-wide')?>
         </div>
       </form>
     </div>
diff --git a/module/instance/model.php b/module/instance/model.php
index f60221069d..777f2caae1 100644
--- a/module/instance/model.php
+++ b/module/instance/model.php
@@ -928,7 +928,9 @@ class InstanceModel extends model
      */
     public function createInstance($app, $space, $thirdDomain, $name = '', $k8name = '', $channel = 'stable', $snippets = array())
     {
+        $createdBy = $this->app->user->account;
         if(empty($k8name)) $k8name = "{$app->chart}-" . date('YmdHis'); //name rule: chartName-userAccount-YmdHis;
+        if(IN_INSTALL && empty($this->app->user->account)) $createdBy = trim($this->app->company->admins, ','); //Set createdBy if in login progress;
 
         $instanceData = new stdclass;
         $instanceData->appId           = $app->id;