I cannot view my contact.html file.

I can't properly view my contact page at the moment. Prior to entering this code,

$app->get('/contact', function() use($app){
    $app->render('contact.html');
});

and prior to deleting the contact.html file in the root of the project folder, I could view the contact.html page just fine.

Now, when I click the Contact button on the About page, it displays this: "Not Found

The requested URL /Users/dennispifer/Website2/BuildingWebsiteswithPHP/index.php was not found on this server." Confusingly the URL is actually: "http://localhost/default/BuildingWebsiteswithPHP/contact.html"

When I enter the following URL, a Contact page displays without the images and resources associated with it. http://localhost/default/BuildingWebsiteswithPHP/index.php/contact

Let me reiterate that for some reason the contact page was working before I altered the

$app->get('/contact', function()

portion of the index.php file.

Here's all of my code:

<?php

require 'vendor/autoload.php';
date_default_timezone_set('America/New_York');

// use Monolog\Logger;
// use Monolog\Handler\StreamHandler;

// $log = new Logger('name');
// $log->pushHandler(new StreamHandler('app.txt', Logger::WARNING));

//$log->addWarning('Foo');
$app = new \Slim\Slim();

$app->get('/', function() use($app){
    $app->render('index.html');
});

$app->get('/contact', function() use($app){
    $app->render('contact.html');
});

$app->run();