Error: As per Indian regulations, export transactions require a customer name and address

I am doing an Udemy course on Full Stack React(React, Redux, MongoDB, Node) by Stephen Grider. I have run into a problem while adding Stripe checkout for payment processing.

THE PROBLEM: After I click on the "Add Credits" button, the credit card form shows up. I enter the details and submit the details. Stripe sends me a token and I send that token to 'api/stripe' route, where I finalise the charge, add 5 credits to the user model and return that updated user document to the frontend. However, I am not able to get the user back. There is an error that says: Error: As per Indian regulations, export transactions require a customer name and address. I have attached a picture of the complete error message.

How can I fix the error? Note that I am using react-stripe-checkout package at the frontend and the stripe package at the backend and Redux Toolkit for state management. All the necessary code samples are as below.

Payments.js
import React from "react";
import StripeCheckout from "react-stripe-checkout";
import { Button } from "react-bootstrap";
import { handleToken } from "./tokenSlice";
import { useDispatch } from "react-redux";

const Payments = () => {
  const dispatch = useDispatch();
  return (
    <StripeCheckout
      name="Emaily"
      description="$5 for 5 email credits"
      amount={500}
      token={(token) => dispatch(handleToken(token))}
      stripeKey={process.env.REACT_APP_STRIPE_KEY}
    >
      <Button variant="outline-warning">Add Credits</Button>
    </StripeCheckout>
  );
};

export default Payments;

billingRoutes.js
const express = require("express");
const keys = require("../config/keys");
const stripe = require("stripe")(keys.stripeSecretKey);

const router = express.Router();

router.post("/", async (req, res) => {
  const charge = await stripe.charges.create({
    amount: 500,
    currency: "usd",
    description: "$5 for 5 credits",
    source: req.body.id,
  });
  req.user.credits += 5;
  const user = await req.user.save();
  res.send(user);
});

module.exports = router;

tokenSlice.js
import { createSlice, createAsyncThunk } from "@reduxjs/toolkit";
import axios from "axios";

const initialState = {
  status: "idle",
};

export const handleToken = createAsyncThunk(
  "token/handleToken",
  async (token) => {
    const { data } = await axios.post("/api/stripe", token);
    return data;
  }
);

const tokenSlice = createSlice({
  name: "token",
  initialState,
  reducers: {},
  extraReducers: {
    [handleToken.pending]: (state, action) => {
      state.status = "loading";
    },
    [handleToken.fulfilled]: (state, action) => {
      state.status = "succeeded";
      state.userInfo = action.payload;
    },
  },
});

export default tokenSlice.reducer;