TypeError: Cannot read property 'find' of undefined for react-typescript-redux

please can anyone help me. When I run npm test to see every time I am getting this error. For example:

    Test Activity › Renders without crashing

    TypeError: Cannot read property 'find' of undefined

      28 |
      29 |   test('Renders without crashing', () => {
    > 30 |     expect(wrapper.find('div')).toExist();
         |                    ^
      31 |   });
      32 |
      33 |   // test('should render one timezone <p>', () => {

      at Object.<anonymous> 
  (src/components/Activities/Activity/Activity.test.tsx:30:20)

In my project enzyme has been used for it. I am having confused to understand why all test cases saying that find was undefined. Here I am trying to create testcases for div and p html tags.

This is my test cases app.test.tsx which is given below:

 import React from 'react';
 import Enzyme, { shallow, ShallowWrapper } from 'enzyme';
 import Adapter from 'enzyme-adapter-react-16';

 import { App } from './index';
 import { users, rooms, customers } from '../tests/mockStore';

  Enzyme.configure({ adapter: new Adapter() });

   describe('Test Activity', () => {
  let wrapper: ShallowWrapper;
  const props = {
    t: jest.fn(),
    users,
    rooms,
    customers,
    id: '2343264scd',
    room: 22222,
    user: 10101033,
    hotelierId: 1000063,
    mainSource: 'admin',
    col: true,
  };

  beforeEach(() => {
    wrapper = shallow(<App { ...props } />);
  });

  test('Renders without crashing', () => {
    expect(wrapper.find('div')).toExist();
  });
    test('should render one timezone', () => {
   expect(wrapper.find('p').exists()).toBe(true);
   });

  test('should render one timezone', () => {
     const text = wrapper.find('p').text();
     expect(text).toEqual('09:50');
     expect(wrapper.find('p').exists()).toBe(true)
   });

Here my test cases were failing in index.tsx file.

 import React from 'react';
 import * as luxon from 'luxon';
const TimezoneIncludesDate = luxon.DateTime.fromISO(timestamp, { zone: 'America/New York' });

return (
  <HotelierTimezone>
        <div>
          <p>{TimezoneIncludesDate.toFormat('HH:mm')}</p>
          <p>{TimezoneIncludesDate.toFormat('DD MMM YYYY z')}</p>
        </div>
      </HotelierTimezone>
)

I am a bit confused I have doubt that is my test cases creation are wrong? It would be great help for me.