React app not working in Internet Explorer 11 - node.js

Question

My react app is not working on Internet explorer 11. It is working fine on edge and chrome.
I have already created a lot of files and i do not think I can try npx create-react-app.( As pointed out in the other answers for similar questions)
I have included this in both my index.js file but it does not work.
import 'react-app-polyfill/ie11';
This is the error I am getting:
I have looked at the links and they ask to resolve a bracket error but there is no issue when I see the code.
This is my package.json file:
{
"name": "insurance_automation",
"version": "0.1.0",
"private": true,
"dependencies": {
"axios": "^0.18.0",
"babel-polyfill": "^6.26.0",
"bcryptjs": "^2.4.3",
"body-parser": "^1.19.0",
"config": "^3.1.0",
"cors": "^2.8.5",
"express": "^4.17.1",
"jsonwebtoken": "^8.5.1",
"multer": "^1.4.1",
"mysql2": "^1.6.5",
"node": "^11.15.0",
"nodemailer": "^6.2.1",
"react": "^16.8.6",
"react-dom": "^16.8.6",
"react-router-dom": "^5.0.0",
"react-scripts": "3.0.1",
"sequelize": "^5.8.6",
"universal-cookie": "^4.0.0"
},
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test",
"eject": "react-scripts eject",
"server": "nodemon server",
"dev": "concurrently \"npm run server\" \"npm start\" "
},
"eslintConfig": {
"extends": "react-app"
},
"browserslist": {
"production": [
">0.2%",
"not dead",
"not op_mini all"
],
"development": [
"last 1 chrome version",
"last 1 firefox version",
"last 1 safari version"
]
},
"devDependencies": {
"concurrently": "^4.1.0",
"nodemon": "^1.19.1"
}
}

Answer 1

This worked for me.
Update the development array in package.json
"development": [
"ie 11",
"last 1 chrome version",
"last 1 firefox version",
"last 1 safari version"
]
}
Add the below code in index.js in the src folder
// These must be the first lines in src/index.js
import 'react-app-polyfill/ie11';
import 'react-app-polyfill/stable';
Then delete the node_modules folder and run
npm install
IE does not support a lot of ES6+ features by default. For more info, refer the create-react-app polyfill docs.