Unable to receive date an spreadsheet API from Firebase that is connected with Dilaogflow

[sanchit892]

Unable to receive date an spreadsheet API from Firebase that is connected with Dilaogflow.

Here is my Index.js
"""
'use strict';

const functions = require('firebase-functions');
const {WebhookClient} = require('dialogflow-fulfillment');
const {Card, Suggestion} = require('dialogflow-fulfillment');
const axios = require('axios');
const Twilio = require('twilio');
const nodemailer = require("nodemailer");
const mysql = require('mysql');

//const transporter = nodemailer.createTransport({
// service: 'gmail',
//auth: {
// user: 'EMAIL',
//pass: 'PASSWORD'
//}
//});

process.env.DEBUG = 'dialogflow:debug'; //enables lib debugging statements

exports.dialogflowFirebaseFulfillment = functions.https.onRequest((request, response) => {
const agent = new WebhookClient({ request, response });
console.log('Dialogflow Request headers: ' + JSON.stringify(request.headers));
console.log('Dialogflow Request body: ' + JSON.stringify(request.body));

function getSpreadsheetData(){
return axios.get('https://sheetdb.io/api/v1/bzg9fw0dmp8ck');
}

function welcome(agent) {
const name = agent.parameters.name;
return getSpreadsheetData().then(res => {
res.data.map(person => {
if(person.Name === name)
agent.add(Here are the details for ${name}. Gender: ${person.Gender}, Home: ${person.Home}, Subject: ${person.Subject}, Activity: ${person.Activity});
});
});
}

function fallback(agent) {
agent.add(I didn't understand);
agent.add(I'm sorry, can you try again?);
}

function feedbackHandler(agent){
/const {
name, email, phone, age
} = agent.parameters;/
const {
name, email, phone, text
} = agent.parameters;

const data = [{
  Name: name,
  Email: email,
  Phone: phone,
  Feedback: text
}];
console.log(name);
console.log(email);
console.log(phone);
console.log(text);
return axios.post('https://sheet.best/api/sheets/76c728d6-ec36-466d-868a-504793f23dca', data)
.then(res=>{
  console.log("save success");
}).catch(err=>{
  console.log("error",err);
});

}

//function sendEmailHandler(agent){
//const { email, name } = agent.parameters;

//const mailOptions = {
  //  from: "Axlewebtech", // sender address
   // to: email, // list of receivers
   // subject: "Email from chatbot", // Subject line
   // html: `<p> Hello ${name} </p>`

// };

// transporter.sendMail(mailOptions, function (err, info) {
// if(err)
// {
// console.log(err);
// }
//});

// }

// Run the proper function handler based on the matched Dialogflow intent name
let intentMap = new Map();
intentMap.set('Default Welcome Intent', welcome);
intentMap.set('Default Fallback Intent', fallback);
intentMap.set('feedback', feedbackHandler);
//intentMap.set('sendEmail', sendEmailHandler);
// intentMap.set('your intent name here', yourFunctionHandler);
// intentMap.set('your intent name here', googleAssistantHandler);
agent.handleRequest(intentMap);
});
"""

Here is package.js
"""
{
"name": "dialogflowFirebaseFulfillment",
"description": "This is the default fulfillment for a Dialogflow agents using Cloud Functions for Firebase",
"version": "1.1.1",
"private": true,
"license": "Apache Version 2.0",
"author": "Google Inc.",
"engines": {
"node": "8"
},
"scripts": {
"start": "firebase serve --only functions:dialogflowFirebaseFulfillment",
"deploy": "firebase deploy --only functions:dialogflowFirebaseFulfillment"
},
"dependencies": {
"actions-on-google": "^2.2.0",
"firebase-admin": "^5.13.1",
"firebase-functions": "^2.0.2",
"dialogflow": "^0.6.0",
"dialogflow-fulfillment": "^0.6.1",
"twilio": "3.39.3",
"axios": "0.19.0",
"nodemailer": "6.3.1",
"mysql": "2.17.1"
}
}
"""

In firebase It's Showing this error

dialogflowFirebaseFulfillment | Function execution took 1522 ms, finished with status: 'crash'

dialogflowFirebaseFulfillment

Error: No responses defined for platform: null at V2Agent.sendResponses_ (/srv/node_modules/dialogflow-fulfillment/src/v2-agent.js:243:13) at WebhookClient.send_ (/srv/node_modules/dialogflow-fulfillment/src/dialogflow-fulfillment.js:505:17) at promise.then (/srv/node_modules/dialogflow-fulfillment/src/dialogflow-fulfillment.js:316:38) at at process._tickDomainCallback (internal/process/next_tick.js:229:7)