Nextcloud lässt sich nicht starten

Nextcloud version (eg, 20.0.5): 23.0.5.1
Operating system and version (eg, Ubuntu 20.04): Debian 10
Apache or nginx version (eg, Apache 2.4.25): apache/2.4.38 nginx/1.14.2
PHP version (eg, 7.4): PHP 7.3.31-1~deb10u2

The issue you are facing:
Hallo,
Ich habe das Problem das meine NC plötzlich offline ist und wenn ich versuche es über Web browser aufzurufen lädt es mir nur ein Index.php datei herunter. Leider viel zu unerfahren um zu wissen was ich damit anstellen soll.
jemand eine lösung?

Is this the first time you’ve seen this error? (Y/N):Yes

The output of your Nextcloud log in Admin > Logging:

Die Log datei ist leer...  

The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):



  'datadirectory' => '/var/www/html/nextcloud/data',
  'dbtype' => 'mysql',
  'version' => '23.0.5.1',
  'overwrite.cli.url' => 'http:///nextcloud',
  'dbname' => 'nextclouddb',
  'dbhost' => 'localhost',
  'dbport' => '',
  'dbtableprefix' => 'oc_',
  'mysql.utf8mb4' => true,
  'dbuser' => '',
  'dbpassword' => '',
  'installed' => true,
  'maintenance' => false,
  'theme' => '',
  'loglevel' => 2
  'htaccess.RewriteBase' => '/', 

The output of your Apache/nginx/system log in /var/log/____:

Apache: [Tue Jan 17 13:54:46.094352 2023] [mpm_prefork:notice] [pid 678] AH00163: Apache/2.4.38 (Debian) configured -- resuming normal operations
[Tue Jan 17 13:54:46.094448 2023] [core:notice] [pid 678] AH00094: Command line: '/usr/sbin/apache2'
[Tue Jan 17 14:20:11.147726 2023] [mpm_prefork:notice] [pid 678] AH00169: caught SIGTERM, shutting down

2023/01/17 13:54:45 [emerg] 677#677: bind() to 0.0.0.0:80 failed (98: Address already in use)
2023/01/17 13:54:45 [emerg] 677#677: bind() to [::]:80 failed (98: Address already in use)
2023/01/17 13:54:45 [emerg] 677#677: bind() to 0.0.0.0:80 failed (98: Address already in use)
2023/01/17 13:54:45 [emerg] 677#677: bind() to [::]:80 failed (98: Address already in use)
2023/01/17 13:54:45 [emerg] 677#677: bind() to 0.0.0.0:80 failed (98: Address already in use)
2023/01/17 13:54:45 [emerg] 677#677: bind() to [::]:80 failed (98: Address already in use)
2023/01/17 13:54:45 [emerg] 677#677: bind() to 0.0.0.0:80 failed (98: Address already in use)
2023/01/17 13:54:45 [emerg] 677#677: bind() to [::]:80 failed (98: Address already in use)
2023/01/17 13:54:45 [emerg] 677#677: bind() to 0.0.0.0:80 failed (98: Address already in use)
2023/01/17 13:54:45 [emerg] 677#677: bind() to [::]:80 failed (98: Address already in use)
2023/01/17 13:54:45 [emerg] 677#677: still could not bind()


Output errors in nextcloud.log in /var/www/ or as admin user in top right menu, filtering for errors. Use a pastebin service if necessary.

PASTE HERE