ErrorException: Undefined variable: html

<?= $html ?>

<?php
 
/**
 * The FactoryDefault Dependency Injector automatically registers the right services to provide a full stack framework
 */
if (isset($_COOKIE['appDev']) && '4b3f212e06d1f763bac5b35074156b4f' === $_COOKIE['appDev'])
  defined('isDev') || define('isDev', true);
require_once __DIR__ . '/autoload.php';
//try {
  require_once __DIR__ . '/config/bootstrap.php';
  $dev         = (isDev || (isset($_COOKIE['appDev']) && '4b3f212e06d1f763bac5b35074156b4f' === $_COOKIE['appDev']));
  $boot        = new Bootstrap();
  $application = $boot->getApp();
  $debug       = new \Phalcon\Debug();
  $debug->setUri('/debug/');
  $debug->listen(TRUE, TRUE);
 
  /** @var \Phalcon\Http\Response $resp */
  $resp = $application->handle();
  if (!$resp->isSent()) {
    $resp->send();
  }
//} catch (\Phalcon\Exception $e) {
//  $resp = $application->response;
//  if (!$resp->isSent()) {
//    $resp->setStatusCode(500)->send();
//  }
//} catch (\Exception $e) {
//
//}