diff --git a/app/Services/ParkingWhitelistService.php b/app/Services/ParkingWhitelistService.php
index efa9d9d..9362368 100644
--- a/app/Services/ParkingWhitelistService.php
+++ b/app/Services/ParkingWhitelistService.php
@@ -32,7 +32,7 @@ class ParkingWhitelistService extends BaseService
         );
         $item['channel_str'] = '';
         if ($channel_list) {
-            $channel_arr = array_column((array)$channel_list, 'name');
+            $channel_arr = array_column((array)$channel_list->toArray(), 'name');
             $item['channel_str'] = implode(',', $channel_arr);
         }
         $item['member_type_str']