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Sorry to hear you’re facing problems. 
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Getting help
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Before clicking submit: Please check if your query is already addressed via the following resources:
- Official documentation (searchable and regularly updated)
- How to topics and FAQs
- Forum search
(Utilizing these existing resources is typically faster. It also helps reduce the load on our generous volunteers while elevating the signal to noise ratio of the forums otherwise arising from the same queries being posted repeatedly).
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. 
The Basics
- Nextcloud Server version (e.g., 29.x.x):
30.0.4
- Operating system and version (e.g., Ubuntu 24.04):
OpenSUSE Tumbleweed
- Web server and version (e.g, Apache 2.4.25):
nginx 1.27.3-1.1
- Reverse proxy and version _(e.g. nginx 1.27.2)
none
- PHP version (e.g, 8.3):
8.3.14-2.1
- Is this the first time you’ve seen this error? (Yes / No):
Yes
- When did this problem seem to first start?
8 November 2024
- Installation method (e.g. AlO, NCP, Bare Metal/Archive, etc.)
Nextcloud: bare metalImaginary: Docker/aio-imaginary
- Are you using CloudfIare, mod_security, or similar? (Yes / No)
No
Summary of the issue you are facing:
Imaginary container is running & healthy, but the last thumbnail was apparently generated over a month ago. I haven’t done any configuration changes (well I have, before noticing the issue, but I have rolled back everything), and Nextcloud logs don’t show an issue. I have updated the aio-imaginary image at some point, this might or might have not been the time when the issue started.
Imaginary container log just says Imaginary has started.
Steps to replicate it (hint: details matter!):
- Add Imaginary settings to config.php
docker pull nextcloud/aio-imaginary:latestdocker run -d --name nc_imaginary --restart always nextcloud/aio-imaginary:latest- Open any folder containing not yet thumbnailed images
Log entries
Nextcloud
Please provide the log entries from your Nextcloud log that are generated during the time of problem (via the Copy raw option from Administration settings->Logging screen or from your nextcloud.log located in your data directory). Feel free to use a pastebin/gist service if necessary.
Password: n3xtcloud
Please note that most of the errors are due to me installing a CODE server (which I eventually removed again, but this all was after Imaginary stopped working I’m pretty sure) and trying to troubleshoot the issue at hand.
Configuration
Nextcloud
The output of occ config:list system or similar is best, but, if not possible, the contents of your config.php file from /path/to/nextcloud is fine (make sure to remove any identifiable information!):
{
"system": {
"instanceid": "***REMOVED SENSITIVE VALUE***",
"passwordsalt": "***REMOVED SENSITIVE VALUE***",
"secret": "***REMOVED SENSITIVE VALUE***",
"trusted_domains": [
"my.REDACTED.cloud",
"192.168.1.111"
],
"datadirectory": "***REMOVED SENSITIVE VALUE***",
"dbtype": "mysql",
"version": "30.0.4.1",
"overwrite.cli.url": "https:\/\/my.REDACTED.cloud",
"dbname": "***REMOVED SENSITIVE VALUE***",
"dbhost": "***REMOVED SENSITIVE VALUE***",
"dbport": "",
"dbtableprefix": "oc_",
"mysql.utf8mb4": true,
"dbuser": "***REMOVED SENSITIVE VALUE***",
"dbpassword": "***REMOVED SENSITIVE VALUE***",
"installed": true,
"default_phone_region": "DE",
"logfile": "\/var\/log\/nextcloud\/nextcloud.log",
"filelocking.enabled": true,
"memcache.local": "\\OC\\Memcache\\APCu",
"memcache.distributed": "\\OC\\Memcache\\Redis",
"memcache.locking": "\\OC\\Memcache\\Redis",
"redis": {
"host": "***REMOVED SENSITIVE VALUE***",
"port": 6379,
"user": "REDACTED",
"password": "***REMOVED SENSITIVE VALUE***",
"dbindex": 0,
"timeout": 1.5,
"read_timeout": 1.5
},
"trusted_proxies": "***REMOVED SENSITIVE VALUE***",
"app_install_overwrite": [
"cms_pico",
"maps"
],
"maintenance": false,
"theme": "",
"loglevel": 2,
"debug": false,
"enabledPreviewProviders": [
"OC\\Preview\\MP3",
"OC\\Preview\\TXT",
"OC\\Preview\\MarkDown",
"OC\\Preview\\Krita",
"OC\\Preview\\Imaginary"
],
"preview_imaginary_url": "***REMOVED SENSITIVE VALUE***",
"mail_smtpmode": "smtp",
"mail_sendmailmode": "smtp",
"mail_smtpsecure": "ssl",
"mail_from_address": "***REMOVED SENSITIVE VALUE***",
"mail_domain": "***REMOVED SENSITIVE VALUE***",
"mail_smtphost": "***REMOVED SENSITIVE VALUE***",
"mail_smtpport": "465",
"mail_smtpauth": 1,
"mail_smtpname": "***REMOVED SENSITIVE VALUE***",
"mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
"maintenance_window_start": 1
}
}
Apps
The output of occ app:list (if possible).
Enabled:
- activity: 3.0.0
- app_api: 4.0.3
- bruteforcesettings: 3.0.0
- circles: 30.0.0
- cloud_federation_api: 1.13.0
- collectives: 2.15.2
- comments: 1.20.1
- contacts: 6.1.1
- contactsinteraction: 1.11.0
- dashboard: 7.10.0
- dav: 1.31.1
- deck: 1.14.2
- federatedfilesharing: 1.20.0
- federation: 1.20.0
- files: 2.2.0
- files_downloadlimit: 3.0.0
- files_external: 1.22.0
- files_pdfviewer: 3.0.0
- files_reminders: 1.3.0
- files_sharing: 1.22.0
- files_trashbin: 1.20.1
- files_versions: 1.23.0
- firstrunwizard: 3.0.0
- groupfolders: 18.0.8
- logreader: 3.0.0
- lookup_server_connector: 1.18.0
- maps: 1.5.0
- nextcloud_announcements: 2.0.0
- notes: 4.11.0
- notifications: 3.0.0
- notify_push: 0.7.0
- oauth2: 1.18.1
- password_policy: 2.0.0
- phonetrack: 0.8.1
- photos: 3.0.2
- privacy: 2.0.0
- provisioning_api: 1.20.0
- recommendations: 3.0.0
- related_resources: 1.5.0
- serverinfo: 2.0.0
- settings: 1.13.0
- sharebymail: 1.20.0
- support: 2.0.0
- systemtags: 1.20.0
- tasks: 0.16.1
- text: 4.1.0
- theming: 2.5.0
- twofactor_backupcodes: 1.19.0
- twofactor_totp: 12.0.0-dev
- updatenotification: 1.20.0
- user_status: 1.10.0
- viewer: 3.0.0
- weather_status: 1.10.0
- webhook_listeners: 1.1.0-dev
- workflowengine: 2.12.0
Disabled:
- admin_audit: 1.20.0
- cms_pico: 1.0.21 (installed 1.0.21)
- encryption: 2.18.0
- files_rightclick: 0.15.1 (installed 1.6.0)
- richdocuments: 8.5.3 (installed 8.5.3)
- survey_client: 2.0.0 (installed 1.16.0)
- suspicious_login: 8.0.0
- twofactor_nextcloud_notification: 4.0.0
- user_ldap: 1.21.0
Thank you for any help!!
