CypressError cy.visit() failed trying to load

I am taking the course https://laracasts.com/series/cypress-and-laravel-integration/episodes/1

I followed the tutorial step by step but the test does not go

it doesn't work (laravel 8.x) I arrived at 7:10 I launch the test and it gives me the following error:

TEST BODY
1
visit
/
CypressError
cy.visit() failed trying to load:

http://my-app.test/

The response we received from your web server was:

  > 500: Server Error

This was considered a failure because the status code was not 2xx.

If you do not want status codes to cause failures pass the option: failOnStatusCode: false
cypress/integration/ex_spec.js:2:5
  1 | it('works',() =>{
> 2 | 	cy.visit('/').contains('Enviroment:Acceptance');
    | 	   ^
  3 | })