Testing: Unable to locate element

I learn testing. I created something like this:

 $this->browse(function ($browser) {
        $browser->visit('/en/register')
                ->type('name', 'hello')
                ->type('email', 'asdsad@o2.pl')
                ->type('password', 'hello')
                ->type('password_confirmation', 'hello')
                ->click('register');
    });

I have the error:

Tests\Browser\ExampleTest::testBasicExample Facebook\WebDriver\Exception\NoSuchElementException: no such element: Unable to locate element: {"method":"css selector","selector":"body register"} For test I want to testing standard register form.