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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:
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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, 29.0.5): 30.0.1
Operating system and version (eg, Ubuntu 24.04): Synology NAS 7.2.2
Apache or nginx version (eg, Apache 2.4.25): replace me
PHP version (eg, 8.3): 8.2 (latest available on Synology NAS)
The issue you are facing:
I have my NAS setup to execute the nightly cronjob in NextCloud and I get a mail every night like this as a failing result from the job:
Task Scheduler has completed a scheduled task.
Task: NextCloud run Cron job
Start time: Sun, 20 Oct 2024 01:00:01 +0200
Stop time: Sun, 20 Oct 2024 01:00:02 +0200
Current status: 255 (Interrupted)
Standard output/error:
PHP Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 28672 bytes) in /volume1/web/nextcloud/lib/private/Blurhash/Listener/GenerateBlurhashMetadata.php on line 85
In Administration->Overview I can see that the last cron job failed.
Is this the first time you’ve seen this error? (Y/N): N
Steps to replicate it:
- I occurs every night as described above
Edit: I forgot to write that php memory_limit is set to 1024M. The error message “Allows memory size of 134217728 bytes exhausted” but I have no idea from where this number comes.
The output of your Nextcloud log in Admin > Logging:
[cron] Debug: CLI cron call has selected job OC\FilesMetadata\Job\UpdateSingleMetadata (id: 943, arguments: ["niklas",4870])
from ? by -- at Oct 19, 2024 at 1:00:02 AM
[cron] Debug: Starting job OC\FilesMetadata\Job\UpdateSingleMetadata (id: 943, arguments: ["niklas",4870])
from ? by -- at Oct 19, 2024 at 1:00:02 AM
[PHP] Error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 28672 bytes) at /volume1/web/nextcloud/lib/private/Blurhash/Listener/GenerateBlurhashMetadata.php#102
from ? by -- at Oct 19, 2024 at 1:00:03 AM
The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):
My file is in the config directory.
<?php
$CONFIG = array (
'instanceid' => '...',
'passwordsalt' => '...',
'secret' => '...',
'trusted_domains' =>
array (
0 => '...',
1 => '...',
),
'datadirectory' => '/volume1/web/nextcloud/data',
'dbtype' => 'mysql',
'version' => '29.0.8.1',
'overwrite.cli.url' => '...',
'dbname' => '...',
'dbhost' => 'localhost',
'dbport' => '',
'dbtableprefix' => 'oc_',
'mysql.utf8mb4' => true,
'dbuser' => 'nc_user',
'dbpassword' => '...',
'installed' => true,
'mail_smtpmode' => 'smtp',
'mail_smtpsecure' => 'tls',
'mail_sendmailmode' => 'smtp',
'mail_from_address' => '...',
'mail_domain' => '...',
'mail_smtpauthtype' => 'LOGIN',
'mail_smtpauth' => 1,
'mail_smtphost' => '...',
'mail_smtpport' => '...',
'mail_smtpname' => '...',
'mail_smtppassword' => '...',
'maintenance' => false,
'default_phone_region' => 'SE',
'theme' => '',
'loglevel' => 0,
'updater.secret' => '...',
);
The output of your Apache/nginx/system log in /var/log/____:
I see nothing in the log for this time at all.
PASTE HERE
Output errors in nextcloud.log in /var/www/ or as admin user in top right menu, filtering for errors. Use a pastebin service if necessary.
PASTE HERE