Error 404 Not Found nginx after trying to reinstall docker on Unraid

Nextcloud version: 26.0.5
Operating system and version: UNRAID 6.12.6
Apache or nginx version: nginx/1.23.3
PHP version: PHP 8.2.7

The issue you are facing:
I can no longer access my personal Nextcloud. I use UNRAID. My UNRAID USB boot device failed so I created a new one. Everything was working except I could not update the dockers for Nextcloud, mariadb, and swag on the UNRAID server. Online forums seemed to indicate that I could delete the dockers and reinstall them and point the Nextcloud docker back to the folder, everything would work correctly. Saddly, this did not work. I probably misunderstood what they meant… My files are all still on the server (I can see them on the drive in UNRAID) but Nextcloud is not accessible in a web browser do to a 404 Not Found nginx error.

I’m guessing there is some setting maybe in the Nextcloud config file or setting of mariadb that I need to fix…

I tried to follow this video tutorial to re-setup my Nextcloud but I can’t follow it once it gets to 7:48
Obviously, I reused my Nextcloud data folder instead of creating a new one…

I’m also getting errors like this in the docker log:

Next Doctrine\DBAL\Exception\TableNotFoundException: An exception occurred while executing a query: SQLSTATE[42S02]: Base table or view not found: 1146 Table 'nextcloud.oc_appconfig' doesn't exist in /config/www/nextcloud/3rdparty/doctrine/dbal/src/Driver/API/MySQL/ExceptionConverter.php:51

Any help is greatly appreciated. I messed this up pretty bad I think. :frowning:

Is this the first time you’ve seen this error?: Yes

Steps to replicate it:

  1. Install Nextcloud.
  2. UNRAID USB drive failure
  3. Create a new USB drive
  4. Nextcloud still works but docker won’t update
  5. Try to remove Nextcloud docker, mariadb docker, and swag docker (dumb!!)
  6. Reinstall mariadb docker and Nextcloud docker pointing it back to Nextcloud data folder
  7. Nextcloud starts but with some errors and cannot access Nextcloud in a browser using local address. Get 404 Not Found nginx error.

The output of your Nextcloud log in Admin > Logging:

Cannot to GUI to log in...

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

$CONFIG = array (
  'memcache.local' => '\\OC\\Memcache\\APCu',
  'datadirectory' => '/data',
  'instanceid' => 'not sure if this is private info',
  'passwordsalt' => 'not sure if this is private info',
  'trusted_domains' => 
  array (
    0 => '',
    1 => '',
    2 => '',
  'trusted_proxies' => 
  array (
    0 => '',
  'dbtype' => 'mysql',
  'version' => '',
  'overwrite.cli.url' => '',
  'overwritehost' => '',
  'overwriteprotocol' => 'https',
  'dbname' => 'nextcloud',
  'dbhost' => '',
  'dbport' => '',
  'dbtableprefix' => 'oc_',
  'mysql.utf8mb4' => true,
  'dbuser' => 'oc_admin',
  'dbpassword' => 'not sure if this is private info',
  'installed' => true,
  'app_install_overwrite' => 
  array (
    0 => 'occweb',
  'maintenance' => false,
  '' => 'stable',
  'mail_smtpmode' => 'smtp',
  'mail_sendmailmode' => 'smtp',
  'theme' => '',
  'loglevel' => 2,
  'default_phone_region' => 'US',
  'mail_smtpsecure' => 'ssl',

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

2024/01/13 20:18:23 [error] 331#331: *4 "/app/www/public/index.php" is not found (2: No such file or directory), client:, server: _, request: "GET / HTTP/2.0", host: ""

Output errors in nextcloud.log in /var/www/ or as admin user in top right menu, filtering for errors.

I don’t see a nextcloud.log file… Maybe I’m looking in the wrong spot…