add

server/app/Http/Controllers/Api/V1/MyController.php

@@ -1406,7 +1406,7 @@ class MyController extends Controller
 //            退款逻辑
         }
         Log::info('is_max:'.$top_user);
-        if (empty($top)) {
+        if (empty($top_user)) {
 //                给最大支持者发送消息
             $arr = [
                 'user_id'=>0,