总是报错："openapi.customerServiceMessage.send:fail response out of time limit or subscription is canceled rid: 5fe71a4c-484a30a3-525f5d9a"，

我的云函数：

// 云函数入口文件
const cloud = require('wx-server-sdk')


cloud.init({
  env: cloud.DYNAMIC_CURRENT_ENV
})


// 云函数入口函数
exports.main = async (event, context) => {


  try {
    return await cloud.openapi.customerServiceMessage.send({
      touser: event.openid,
      page: "pages/index/index",
      data: {
        thing2: {
          value: "灰狼编程",
        },
        thing3: {
          value: "这是很好的一门课"
        }
      },
      templateId: "-swmuIHPkg9ir2rFyX81jav6W0N0a6rEV3lQcWBR7Dk"
    })


  } catch (err) {
    console.log(err);
    return err;


  }
}

这是为啥呢？写的没错误呀