完善接口错误提示

src/platform/ZhonTai.Admin/Services/DiTuiAPI/DiTuiAPIService.cs

@@ -68,7 +68,10 @@ namespace ZhonTai.Admin.Services.DiTuiAPI
             }
             var org = await _orgRepository.Select.Where(a => a.Code == platform).DisableGlobalFilter()
                 .FirstAsync(a => new { a.Name, a.TenantId });
-
+            if(org is null)
+            {
+                throw ResultOutput.Exception($"未查询到相关平台信息，请核实Platform");
+            }
 
             using (_platformUserRepository.DataFilter.DisableAll())
             {