Support intro
Sorry to hear you’re facing problems 
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In order to help you as quickly as possible, before clicking Create Topic please provide as much of the below as you can. Feel free to use a pastebin service for logs, otherwise either indent short log examples with four spaces:
example
Or for longer, use three backticks above and below the code snippet:
longer
example
here
Some or all of the below information will be requested if it isn’t supplied; for fastest response please provide as much as you can 
Nextcloud version (eg, 20.0.5): replace me
Nextcloud version 2.6.2-1build1
Using Qt 5.12.8, built against Qt 5.12.5
Using ‘OpenSSL 1.1.1f 31 Mar 2020’
Operating system and version (eg, Ubuntu 20.04): 20.04
Apache or nginx version (eg, Apache 2.4.25): replace me
PHP version (eg, 7.4): replace me
The issue you are facing:
Is this the first time you’ve seen this error? (Y/N):
Steps to replicate it:
- run nextcloud
The output of your Nextcloud log in Admin > Logging:
Abgebrochen (Speicherabzug geschrieben)
The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):
<?php
$snap_current = getenv('SNAP_CURRENT');
$snap_data_current = getenv('SNAP_DATA_CURRENT');
$CONFIG = array(
/**
* Use the ``apps_paths`` parameter to set the location of the Apps directory,
* which should be scanned for available apps, and where user-specific apps
* should be installed from the Apps store. The ``path`` defines the absolute
* file system path to the app folder. The key ``url`` defines the HTTP web path
* to that folder, starting from the Nextcloud web root. The key ``writable``
* indicates if a web server can write files to that folder.
*/
'apps_paths' => array(
/**
* These are the default apps shipped with Nextcloud. They are read-only.
*/
array(
'path'=> $snap_current.'/htdocs/apps',
'url' => '/apps',
'writable' => false,
),
/**
* This directory is writable, meant for apps installed by the user.
*/
array(
'path'=> $snap_data_current.'/nextcloud/extra-apps',
'url' => '/extra-apps',
'writable' => true,
),
),
/**
* Database types that are supported for installation.
*
* Available:
* - sqlite (SQLite3 - Not in Enterprise Edition)
* - mysql (MySQL)
* - pgsql (PostgreSQL)
* - oci (Oracle - Enterprise Edition Only)
*/
'supportedDatabases' => array(
'mysql',
),
'memcache.locking' => '\OC\Memcache\Redis',
'memcache.local' => '\OC\Memcache\Redis',
'redis' => array(
'host' => getenv('REDIS_SOCKET'),
'port' => 0,
),
'log_type' => 'file',
'logfile' => $snap_data_current.'/logs/nextcloud.log',
'logfilemode' => 0640,
);```
The output of your Apache/nginx/system log in `/var/log/____`:
PASTE HERE