Ubuntu: Desktop client crashes after scanning / before transmitting

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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:

  1. 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!):


$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.
		'path'=> $snap_current.'/htdocs/apps',
		'url' => '/apps',
		'writable' => false,

	 * This directory is writable, meant for apps installed by the user.
		'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(

'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/____`: