diff --git a/webapp/controller/MissionController.class.php b/webapp/controller/MissionController.class.php
index 097d03e6..8566d734 100644
--- a/webapp/controller/MissionController.class.php
+++ b/webapp/controller/MissionController.class.php
@@ -212,6 +212,11 @@ class MissionController extends BaseAuthedController {
 //            $specMissionDto['state'] = Mission::RECEIVEABLE_STATE;
 //            array_push($missionDtoList, $missionDto);
 //        }
+
+        if (count($missionDtoList) < 1){
+            $this->_rspErr(1, "There are not rewards");
+            return;
+        }
         foreach ($missionDtoList as $missionDto) {
             $missionMeta = mt\Task::get($missionDto['mission_id']);
             $dropMeta = mt\Drop::get($missionMeta['reward']);