fix : site

app/Service/Api/User/SiteService.php

@@ -107,11 +107,12 @@ class SiteService extends BaseService
         Db::transaction(function () use ($info) {
             if ($info->is_default == SiteCode::USER_DEFAULT) {
                 $updateInfo = $this->userSiteModel->getUserNoDefaultIdByUserId($this->userId);
-
+                if (!empty($updateInfo)) {
                     $updateInfo->is_default = SiteCode::USER_DEFAULT;
 
                     if(!$updateInfo->save()) throw new ErrException('删除失败-修改联动数据失败');
                 }
+            }
 
             if (!$info->delete()) throw new ErrException('删除失败');
         });