Test fails when running phpunit globally, works when executed alone

So basically if I use the phpunit command to execute the test, I get this error:

There was 1 error:

1. Tests\Feature\ViewMoviesTest::the_main_page_shows_correct_info Error: Call to undefined function GuzzleHttp_idn_uri_convert()

If I execute it in PHPStorm with the Run 'the_main_page_shows..' it passes correctly. I have no clue why this is happening, in other projects this worked perfectly.

This is my test, it really doesnt do much.

/** @test */
public function the_main_page_shows_correct_info()
{
    $this->withoutExceptionHandling();

    $response = $this->get(route('movies.index'));
    $response->assertSuccessful();
}