Why can't $application->run(); in YII2?

Question

Yii

Transferred the project to yii2 from local to hosting. In frondend/web/index.php the last line does not work, namely
$application->run();
rather it works weird. Displays run();
Conducted an experiment, changed index.php:

<?php
echo "1";
defined('YII_DEBUG') or define('YII_DEBUG', false);
echo "2";
defined('YII_ENV') or define('YII_ENV', 'prod');
echo "3";
require(__DIR__ . '/../../vendor/autoload.php');
echo "4";
require(__DIR__ . '/../../vendor/yiisoft/yii2/Yii.php');
echo "5";
require(__DIR__ . '/../../common/config/bootstrap.php');
echo "6";
require(__DIR__ . '/../config/bootstrap.php');
echo "7";
$config = yii\helpers\ArrayHelper::merge(
    require(__DIR__ . '/../../common/config/main.php'),
    require(__DIR__ . '/../../common/config/main-local.php'),
    require(__DIR__ . '/../config/main.php'),
    require(__DIR__ . '/../config/main-local.php')
);
echo "8";
$application = new yii\web\Application($config);
echo "9";
$application->run();
echo "10";

printed
run(); echo "10";

Answer 1

Turn on the logs and see where the error is. It is possible that 5.4 was enabled, and .htaccess was lost during the transfer