I want to update my nextcloud - but it fails. I have tried a lot to run it, but I have less knowlage and also less experiance. I hope you can help.
So, what have I done? I pressed Open Updater.
And gets this:
The Website doesn’t load any more content. It still stay white. 
So I tried to update it via terminal/console with
sudo -u www-data php /var/www/html/nextcloud/updater.phar
and gets this:
Linux NxCloud1 4.19.0-18-amd64 #1 SMP Debian 4.19.208-1 (2021-09-29) x86_64
The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.
root@NxCloud1:~# sudo -u www-data php /var/www/html/nextcloud/updater/updater.phar
Nextcloud Updater - version: v20.0.0beta4-11-g68fa0d4
Current version is 21.0.7.
[Exception]
Could not do request to updater server: SSL certificate problem: unable to get local issuer certificate
update [--no-backup]
What do I think is the problem? I believe there is more than one problem…:
The details above let me think I’ve a problem with my SSL-certificate and a problem with php.
I wanted to test my certificate but I have no idea how. I found some commands like certbot. Because the admin who installed nextcloud on the virtual machine doesn’t installed certbot. I am unsure -should I install it? Currently it isn’t installed. Could it help?
Nextcloud version: 21.0.7
Operating system and version: Debian 4.19.208-1
Apache or nginx version: Apache/2.4.38 (debian)
PHP version: 7.3.33 ( Memory Limit: 2 GB; Max Execution Time: 3600; Upload max size: 500 MB)
This seems to be another problem:
The output of my Nextcloud log in Admin > Logging:
[webdav] Fatal: Sabre\DAV\Exception\ServiceUnavailable: Could not open file at <<closure>>
0. /var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/CorePlugin.php line 85
OCA\DAV\Connector\Sabre\File->get()
1. /var/www/html/nextcloud/3rdparty/sabre/event/lib/WildcardEmitterTrait.php line 89
Sabre\DAV\CorePlugin->httpGet(Sabre\HTTP\Request {}, Sabre\HTTP\Response {})
2. /var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php line 472
Sabre\DAV\Server->emit("method:GET", [Sabre\HTTP\Requ ... }])
3. /var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php line 253
Sabre\DAV\Server->invokeMethod(Sabre\HTTP\Request {}, Sabre\HTTP\Response {})
4. /var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php line 321
Sabre\DAV\Server->start()
5. /var/www/html/nextcloud/apps/dav/lib/Server.php line 332
Sabre\DAV\Server->exec()
6. /var/www/html/nextcloud/apps/dav/appinfo/v2/remote.php line 35
OCA\DAV\Server->exec()
7. /var/www/html/nextcloud/remote.php line 167
require_once("/var/www/html/n ... p")
GET /remote.php/dav/files/path/to/file/file.docx
from 192.168.178.15 by 3f5ea250a5f at 2022-07-21T19:48:25+00:00
The output of my config.php file:
<?php
$CONFIG = array (
'instanceid' => 'hash123',
'passwordsalt' => 'hash',
'secret' => 'hashhash',
'trusted_domains' =>
array (
0 => '192.168.178.17',
1 => '123-cloud.domain.de',
),
'datadirectory' => '/var/www/html/nextcloud/data',
'dbtype' => 'mysql',
'version' => '21.0.7.0',
'overwrite.cli.url' => '123-cloud.domain.de',
'overwriteprotocol' => 'https',
'dbname' => 'nextclouddb',
'dbhost' => 'localhost',
'dbport' => '',
'dbtableprefix' => 'oc_',
'mysql.utf8mb4' => true,
'dbuser' => 'dbusersalt',
'dbpassword' => 'dbpasswortsalt',
'installed' => true,
'maintenance' => false,
'theme' => '',
'loglevel' => 2,
'default_language' => 'de',
'default_locale' => 'de_DE',
'default_phone_region' => 'DE',
'memcache.local' => '\\OC\\Memcache\\APCu',
'ldapProviderFactory' => 'OCA\\User_LDAP\\LDAPProviderFactory',
'lost_password_link' => 'disabled',
'updater.secret' => '$%%',
'updater.release.channel' => 'stable',
);
Why the certificate is unable to get?
In the daily use I have no certificate errors.
Why the Updater stops?