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Sorry to hear you’re facing problems 
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Nextcloud version (eg, 20.0.5): 25.0.1
Operating system and version (eg, Ubuntu 20.04): Debian 10
Apache or nginx version (eg, Apache 2.4.25): 2.4.38
PHP version (eg, 7.4): 8.1.12 is what php -v gives
The issue you are facing:
I get a warning for background jobs not running, despite having */5 * * * * php -f /var/www/nextcloud/cron.php --define apc.enable_cli=1 when I run crontab -u www-data -l as root. Also same if I don’t have --define apc.enable_cli=1.
I can’t seem to run anything as the www-data user; if I try su www-data it says account not available, so I can’t try running the cronjob manually.
Is this the first time you’ve seen this error? (Y/N): Y
Steps to replicate it:
- Start the server
The output of your Nextcloud log in Admin > Logging:
No relevant errors
The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):
$CONFIG = array (
'passwordsalt' => '',
'secret' => '',
'trusted_domains' =>
array (
0 => 'localhost',
1 => '',
),
'datadirectory' => '/var/www/nextcloud-data',
'dbtype' => 'mysql',
'version' => '25.0.1.1',
'overwrite.cli.url' => 'http://localhost',
'dbname' => 'nextcloud',
'dbhost' => 'localhost',
'dbport' => '',
'dbtableprefix' => 'oc_',
'mysql.utf8mb4' => true,
'dbuser' => 'nextcloud',
'dbpassword' => '',
'installed' => true,
'memcache.local' => '\\OC\\Memcache\\Redis',
'redis' =>
array (
'host' => '/var/run/redis/redis.sock',
'port' => 0,
'timeout' => 0.0,
),
'filelocking.enabled' => true,
'memcache.locking' => '\\OC\\Memcache\\Redis',
'instanceid' => '',
'skeletondirectory' => '',
'maintenance' => false,
'theme' => '',
'loglevel' => 2,
'updater.secret' => '',
'updater.release.channel' => 'beta',
);
The output of your Apache/nginx/system log in /var/log/____:
[Wed Nov 09 00:00:03.842700 2022] [ssl:warn] [pid 303] AH01909: localhost:443:0 server certificate does NOT include an ID which matches the server name
[Wed Nov 09 00:00:03.843010 2022] [ssl:warn] [pid 303] AH01909: localhost:12322:0 server certificate does NOT include an ID which matches the server name
[Wed Nov 09 00:00:03.843178 2022] [mpm_prefork:notice] [pid 303] AH00163: Apache/2.4.38 (Debian) OpenSSL/1.1.1n configured -- resuming normal operations
[Wed Nov 09 00:00:03.843186 2022] [core:notice] [pid 303] AH00094: Command line: '/usr/sbin/apache2'
[Wed Nov 09 03:08:11.529743 2022] [mpm_prefork:notice] [pid 303] AH00169: caught SIGTERM, shutting down
[Wed Nov 09 03:08:20.648750 2022] [ssl:warn] [pid 289] AH01909: localhost:443:0 server certificate does NOT include an ID which matches the server name
[Wed Nov 09 03:08:20.649166 2022] [ssl:warn] [pid 289] AH01909: localhost:12322:0 server certificate does NOT include an ID which matches the server name
PHP Warning: PHP Startup: Unable to load dynamic library 'imagick.so' (tried: /usr/lib/php/20180731/imagick.so (/usr/lib/php/20180731/imagick.so: cannot open shared object file: No such file or directory), /usr/lib/php/20180731/imagick.so.so (/usr/lib/php/20180731/imagick.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
[Wed Nov 09 03:08:20.692824 2022] [ssl:warn] [pid 307] AH01909: localhost:443:0 server certificate does NOT include an ID which matches the server name
[Wed Nov 09 03:08:20.693183 2022] [ssl:warn] [pid 307] AH01909: localhost:12322:0 server certificate does NOT include an ID which matches the server name
[Wed Nov 09 03:08:20.698797 2022] [mpm_prefork:notice] [pid 307] AH00163: Apache/2.4.38 (Debian) OpenSSL/1.1.1n configured -- resuming normal operations
[Wed Nov 09 03:08:20.698838 2022] [core:notice] [pid 307] AH00094: Command line: '/usr/sbin/apache2'
[Wed Nov 09 03:08:21.520753 2022] [proxy_fcgi:error] [pid 313] [client 192.168.1.241:59352] AH01071: Got error 'PHP message: PHP Fatal error: Uncaught Doctrine\\DBAL\\Exception: Failed to connect to the database: An exception occurred in the driver: SQLSTATE[HY000] [2002] No such file or directory in /var/www/nextcloud/lib/private/DB/Connection.php:139\nStack trace:\n#0 /var/www/nextcloud/3rdparty/doctrine/dbal/src/Connection.php(1519): OC\\DB\\Connection->connect()\n#1 /var/www/nextcloud/3rdparty/doctrine/dbal/src/Connection.php(1041): Doctrine\\DBAL\\Connection->getWrappedConnection()\n#2 /var/www/nextcloud/lib/private/DB/Connection.php(261): Doctrine\\DBAL\\Connection->executeQuery()\n#3 /var/www/nextcloud/3rdparty/doctrine/dbal/src/Query/QueryBuilder.php(345): OC\\DB\\Connection->executeQuery()\n#4 /var/www/nextcloud/lib/private/DB/QueryBuilder/QueryBuilder.php(281): Doctrine\\DBAL\\Query\\QueryBuilder->execute()\n#5 /var/www/nextcloud/lib/private/AppConfig.php(411): OC\\DB\\QueryBuilder\\QueryBuilder->execute()\n#6 /var/www/nextcloud/lib/private/AppConfig.php(176): OC\\AppConfig->loadConfigValues()\n#7 /var/www/nextcloud/lib/p...'