Apache Server "Zugriff verweigert!"

Fileserver-Backup:/usr/share # rcapache2 status
× apache2.service - The Apache Webserver
     Loaded: loaded (/usr/lib/systemd/system/apache2.service; disabled; vendor preset: disabled)
     Active: failed (Result: protocol) since Sat 2023-05-27 11:27:36 CEST; 15min ago
   Main PID: 27702 (code=exited, status=0/SUCCESS)
     Status: "Reading configuration..."

May 27 11:27:36 Fileserver-Backup systemd[1]: Starting The Apache Webserver...
May 27 11:27:36 Fileserver-Backup start_apache2[27702]: httpd (pid 26069) already running
May 27 11:27:36 Fileserver-Backup systemd[1]: apache2.service: Failed with result 'protocol'.
May 27 11:27:36 Fileserver-Backup systemd[1]: Failed to start The Apache Webserver.

<Directory />
    Options Indexes FollowSymLinks
    AllowOverride None
    <IfModule !mod_access_compat.c>
        Require all denied
    </IfModule>
    <IfModule mod_access_compat.c>
        Order deny,allow
        Deny from all
    </IfModule>
</Directory>

<?php

/**
 *
 * bareos-webui - Bareos Web-Frontend
 *
 * @link      https://github.com/bareos/bareos for the canonical source repository
 * @copyright Copyright (c) 2013-2023 Bareos GmbH & Co. KG (http://www.bareos.org/)
 * @license   GNU Affero General Public License (http://www.gnu.org/licenses/)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

if (isset($_SERVER['APPLICATION_ENV']) && $_SERVER['APPLICATION_ENV'] == 'development') {
    error_reporting(E_ALL);
    ini_set("display_errors", 1);
    define('REQUEST_MICROTIME', microtime(true));
}

/**
 * This makes our life easier when dealing with paths. Everything is relative
 * to the application root now.
 */
chdir(dirname(__DIR__));

// Decline static file requests back to the PHP built-in webserver
if (php_sapi_name() === 'cli-server' && is_file(__DIR__ . parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH))) {
    return false;
}

// Setup autoloading
require 'init_autoloader.php';

// Run the application!
Zend\Mvc\Application::init(require 'config/application.config.php')->run();