diff --git a/app/Http/Controllers/Admin/IndexController.php b/app/Http/Controllers/Admin/IndexController.php
index 567d86f..cb20377 100644
--- a/app/Http/Controllers/Admin/IndexController.php
+++ b/app/Http/Controllers/Admin/IndexController.php
@@ -123,7 +123,7 @@ class IndexController extends BaseController
     {
         try {
             $targetMode = EventCalendarService::targetModel();
-            $pattern_id = $targetMode['pattern_id'];
+            $pattern_id = $targetMode['pattern_id'] ?? 0;
             $spaceIds = ParkingPatternSpace::getParkingSpaceIds($pattern_id);
             $sum = 0;
             $use_sum = 0;