云函数不稳定，突然之间就获取不到数据模型了
const cloud = require('wx-server-sdk')
const cloudbase = require("@cloudbase/node-sdk");
const app = cloudbase.init({
  env: cloud.DYNAMIC_CURRENT_ENV,
});
exports.main = async (event, context) => {
  const { data } = await app.models.shop_order.get({
    filter: { where: { $and: [{ _id: { $eq: "BE5RGJYEA4", }, },] } },
    envType: "prod",
  });
  return data
};
报一下错误，这是什么原因
{
  "code": "SYS_ERR",
  "message": "System Error.",
  "stack": "TypeError: Cannot read properties of undefined (reading 'shop_order')\n    at exports.main (/workspace/cloudfunctions/t1/index.js:8:37)\n    at dispatch (/workspace/node_modules/.pnpm/koa-compose@4.1.0/node_modules/koa-compose/index.js:42:32)\n    at dispatch (/workspace/node_modules/.pnpm/koa-compose@4.1.0/node_modules/koa-compose/index.js:42:32)\n    at dispatch (/workspace/node_modules/.pnpm/koa-compose@4.1.0/node_modules/koa-compose/index.js:42:32)\n    at /workspace/node_modules/.pnpm/koa-body@6.0.1/node_modules/koa-body/lib/index.js:115:16",
  "requestId": "4228f7072b78317bc7be6a810961e998"
}