diff --git a/module/task/control.php b/module/task/control.php
index 132f3f5f71..6b29d20950 100644
--- a/module/task/control.php
+++ b/module/task/control.php
@@ -565,7 +565,7 @@ class task extends control
         if($this->post->names)
         {
             $allChanges = $this->task->batchUpdate();
-            if(dao::isError()) return $this->send(array('result' => 'fail', 'message' => dao::getError()));
+            if(dao::isError()) return print(js::error(dao::getError()));
 
             if(!empty($allChanges))
             {
diff --git a/module/task/model.php b/module/task/model.php
index b2e9738488..6c3bec7982 100644
--- a/module/task/model.php
+++ b/module/task/model.php
@@ -1194,6 +1194,12 @@ class taskModel extends model
             $task->consumed       = $oldTask->consumed;
             $task->parent         = $oldTask->parent;
 
+            if(strpos(',doing,pause,', $task->status) and empty($teams) and empty($task->left))
+            {
+                dao::$errors[] = sprintf($this->lang->task->error->leftEmptyAB, zget($this->lang->task->statusList, $task->status));
+                return false;
+            }
+
             if(empty($task->closedReason))
             {
                 if($oldTask->status == 'done')   $task->closedReason = 'done';