MKCOL /remote.php/webdav/Folder/Books HTTP/1.1" 503 921 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:63.0) Gecko/20100101 Firefox/63.0

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1

I suspect this is a problem with my web host, and not Nextcloud. All I need to do is find out what is causing the 503, e.g. insufficient memory, disk, etc., but the error.log does not provide any explanation of why.

Nextcloud version 13.0.1 Build:2018-03-13T18:49:57+00:00 c2cea293d54bbbdf908346cdf3acc2a545142ba1
Operating system and version: Ubuntu 14.04.5 LTS
Apache or nginx version: 2.2.31-5
PHP version: 7.2

The issue you are facing:
When I attempt to create a folder in one of my shared folders, I

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

Steps to replicate it on my setup:

  1. Create a new empty folder.
  2. An error is displayed: Could not create folder “Books”
  3. My error.log shows a “MKCOL /remote.php/webdav/Folder/Books HTTP/1.1” 503 921 “-” “Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:63.0) Gecko/20100101 Firefox/63.0”

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

<?php
$CONFIG = array (
  'instanceid' => '***SCRUBBED***',
  'passwordsalt' => '***SCRUBBED***',
  'secret' => '***SCRUBBED***',
  'trusted_domains' => 
  array (
    0 => '***SCRUBBED***',
  ),
  'datadirectory' => '/home/***SCRUBBED***',
  'overwrite.cli.url' => 'https://***SCRUBBED***',
  'dbtype' => 'mysql',
  'version' => '13.0.1.1',
  'dbname' => '***SCRUBBED***',
  'dbhost' => '***SCRUBBED***',
  'dbport' => '',
  'dbtableprefix' => 'oc_',
  'dbuser' => 'ct_nextcloud',
  'dbpassword' => '***SCRUBBED***',
  'installed' => true,
  'maintenance' => false,
  'theme' => '',
  'loglevel' => 2,
  'mail_smtpmode' => 'sendmail',
  'mail_smtpauthtype' => 'LOGIN',
  'mail_from_address' => 'no_reply',
  'mail_domain' => '***SCRUBBED***',
  'updater.release.channel' => 'daily',
);

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

"MKCOL /remote.php/webdav/Folder/Books HTTP/1.1" 503 921 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:63.0) Gecko/20100101 Firefox/63.0"