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The Basics
- Nextcloud Server version (e.g., 29.x.x):
32.0.0
- Operating system and version (e.g., Ubuntu 24.04):
Ubuntu Server 24.04
- Reverse proxy and version _(e.g. nginx 1.27.2)
nginx 1.24
- PHP version (e.g, 8.3):
8.3
- Is this the first time you’ve seen this error? (Yes / No):
Yes
- When did this problem seem to first start?
After update to NC 32
- Installation method (e.g. AlO, NCP, Bare Metal/Archive, etc.)
NC install via Cloudron on Netcup Root server
- Are you using CloudfIare, mod_security, or similar? (Yes / No)
No
This is the exact same on all my NC instances.
Summary of the issue you are facing:
As per many reported case I experienced issues with the app store being down. All issues got resolved on all of my instances that upgraded to NC32 except one where many apps are still running in their older version (the version compatible with NC31 - see for example calendar and groupfolders in the list below) and the whole app store seems broken. Discover page displays “Nothing to show”, I see no update available and I cannot install any new apps (neither from the web interface or via terminal with the occ app command).
If I disable an outdated app and try to re-enable it via the web interface, it throws an error (Error: This app cannot be enabled because it makes the server unstable) and then the whole instance breaks (cannot starts any longer). Weirdly, several apps running outdated version are active and running fine (e.g. Calendar), others are not (e.g. Group folders).
I have tried to disable all outdated apps, restarted the instance but still the app store seems broken and does not update anything. Running occ app:update --all from console also shows no update. As per some other forum threads I tried disabling the AppAPI app but that has no effect.
The internet connection seems fine on the server, files are syncing normally with desktop/mobile client and I can see no obvious errors in Security & setup warnings in Administration settings > Overview.
Any help would be greatly appreciated at this stage. I’m ran out of ideas.
Log entries
Nextcloud
I cannot see any errors in the log which relates to this. Only when Nextcloud starts I can see:
==> Installing and enabling spreed, if needed
Oct 02 16:36:13 Error: Could not download app spreed, it was not found on the appstore
Oct 02 16:36:14 Could not download app spreed, it was not found on the appstore
Implying the App Store is somehow not reach/checked properly.
The only log error I can see is this:
{"reqId":"UFp0k3Zxnqpj3SqIHwxS","level":3,"time":"2025-10-02T15:59:00+00:00","remoteAddr":"109.151.151.189","user":"ggn","app":"index","method":"GET","url":"/core/preview?fileId=598347&x=250&y=250","message":"Could not create folder \"/appdata_ocah64r2wpg3/preview/c/0/d/f/9/6/6/598347\"","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:143.0) Gecko/20100101 Firefox/143.0","version":"32.0.0.13","exception":{"Exception":"OCP\\Files\\NotPermittedException","Message":"Could not create folder \"/appdata_ocah64r2wpg3/preview/c/0/d/f/9/6/6/598347\"","Code":0,"Trace":[{"file":"/app/code/lib/private/Files/AppData/AppData.php","line":129,"function":"newFolder","class":"OC\\Files\\Node\\Folder","type":"->"},{"file":"/app/code/lib/private/Preview/Storage/Root.php","line":56,"function":"newFolder","class":"OC\\Files\\AppData\\AppData","type":"->"},{"file":"/app/code/lib/private/Preview/Generator.php","line":591,"function":"newFolder","class":"OC\\Preview\\Storage\\Root","type":"->"},{"file":"/app/code/lib/private/Preview/Generator.php","line":107,"function":"getPreviewFolder","class":"OC\\Preview\\Generator","type":"->"},{"file":"/app/code/lib/private/Preview/Generator.php","line":87,"function":"generatePreviews","class":"OC\\Preview\\Generator","type":"->"},{"file":"/app/code/lib/private/PreviewManager.php","line":161,"function":"getPreview","class":"OC\\Preview\\Generator","type":"->"},{"file":"/app/code/core/Controller/PreviewController.php","line":166,"function":"getPreview","class":"OC\\PreviewManager","type":"->"},{"file":"/app/code/core/Controller/PreviewController.php","line":128,"function":"fetchPreview","class":"OC\\Core\\Controller\\PreviewController","type":"->"},{"file":"/app/code/lib/private/AppFramework/Http/Dispatcher.php","line":204,"function":"getPreviewByFileId","class":"OC\\Core\\Controller\\PreviewController","type":"->"},{"file":"/app/code/lib/private/AppFramework/Http/Dispatcher.php","line":118,"function":"executeController","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->"},{"file":"/app/code/lib/private/AppFramework/App.php","line":153,"function":"dispatch","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->"},{"file":"/app/code/lib/private/Route/Router.php","line":321,"function":"main","class":"OC\\AppFramework\\App","type":"::"},{"file":"/app/code/lib/base.php","line":1061,"function":"match","class":"OC\\Route\\Router","type":"->"},{"file":"/app/code/index.php","line":25,"function":"handleRequest","class":"OC","type":"::"}],"File":"/app/code/lib/private/Files/Node/Folder.php","Line":133,"message":"Could not create folder \"/appdata_ocah64r2wpg3/preview/c/0/d/f/9/6/6/598347\"","exception":[],"CustomMessage":"Could not create folder \"/appdata_ocah64r2wpg3/preview/c/0/d/f/9/6/6/598347\""},"id":"68dea14c25c82"}
Weird that this would show up given I have disabled the Preview Generator app.
Configuration
Nextcloud
The output of occ config:list system:
{
"system": {
"passwordsalt": "***REMOVED SENSITIVE VALUE***",
"secret": "***REMOVED SENSITIVE VALUE***",
"trusted_domains": [
"files.chourmo.net"
],
"datadirectory": "***REMOVED SENSITIVE VALUE***",
"dbtype": "pgsql",
"version": "32.0.0.13",
"overwrite.cli.url": "https:\/\/files.chourmo.net\/",
"dbname": "***REMOVED SENSITIVE VALUE***",
"dbhost": "***REMOVED SENSITIVE VALUE***",
"dbport": "5432",
"dbtableprefix": "oc_",
"dbuser": "***REMOVED SENSITIVE VALUE***",
"dbpassword": "***REMOVED SENSITIVE VALUE***",
"installed": true,
"trusted_proxies": "***REMOVED SENSITIVE VALUE***",
"forcessl": "1",
"mail_smtpmode": "smtp",
"mail_smtpauth": 1,
"mail_smtphost": "***REMOVED SENSITIVE VALUE***",
"mail_smtpport": "2525",
"mail_smtpname": "***REMOVED SENSITIVE VALUE***",
"mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
"mail_from_address": "***REMOVED SENSITIVE VALUE***",
"mail_domain": "***REMOVED SENSITIVE VALUE***",
"overwritehost": "files.chourmo.net",
"overwriteprotocol": "https",
"updatechecker": false,
"updater.release.channel": "cloudron",
"lost_password_link": "https:\/\/my.chourmo.net\/api\/v1\/session\/password\/resetRequest.html",
"logfile": "\/run\/nextcloud\/nextcloud.log",
"loglevel": 3,
"debug": false,
"redis": {
"host": "***REMOVED SENSITIVE VALUE***",
"port": "6379",
"password": "***REMOVED SENSITIVE VALUE***"
},
"memcache.local": "\\OC\\Memcache\\Redis",
"memcache.locking": "\\OC\\Memcache\\Redis",
"integrity.check.disabled": true,
"htaccess.RewriteBase": "\/",
"instanceid": "***REMOVED SENSITIVE VALUE***",
"ldapIgnoreNamingRules": false,
"maintenance": false,
"simpleSignUpLink.shown": false,
"app_install_overwrite": [
"drawio",
"carnet"
],
"default_phone_region": "US",
"mail_sendmailmode": "smtp",
"mail_smtpauthtype": "LOGIN",
"mail_smtpsecure": "",
"has_rebuilt_cache": true,
"maintenance_window_start": 1,
"log_type": "file",
"localstorage.allowsymlinks": true,
"trashbin_retention_obligation": "7,30",
"dns_pinning": false,
"user_oidc": {
"login_label": "Log in with Chourmo"
}
Apps
The output of occ app:list:
Enabled:
- activity: 5.0.0-dev.0
- admin_audit: 1.22.0
- app_api: 32.0.0
- bruteforcesettings: 5.0.0-dev.0
- circles: 32.0.0
- cloud_federation_api: 1.16.0
- comments: 1.22.0
- contactsinteraction: 1.13.1
- dav: 1.34.2
- federatedfilesharing: 1.22.0
- federation: 1.22.0
- files: 2.4.0
- files_downloadlimit: 5.0.0-dev.0
- files_external: 1.24.0
- files_pdfviewer: 5.0.0-dev.0
- files_reminders: 1.5.0
- files_sharing: 1.24.0
- files_trashbin: 1.22.0
- files_versions: 1.25.0
- firstrunwizard: 5.0.0-dev.0
- logreader: 5.0.0-dev.0
- lookup_server_connector: 1.20.0
- nextcloud_announcements: 4.0.0-dev.0
- notifications: 5.0.0-dev.0
- oauth2: 1.20.0
- password_policy: 4.0.0-dev.0
- privacy: 4.0.0-dev.0
- profile: 1.1.0
- provisioning_api: 1.22.0
- recommendations: 5.0.0-dev.0
- related_resources: 3.0.0-dev.0
- serverinfo: 4.0.0-dev.0
- settings: 1.15.1
- support: 4.0.0-dev.0
- survey_client: 4.0.0-dev.0
- systemtags: 1.22.0
- text: 6.0.0-dev.0
- theming: 2.7.0
- twofactor_backupcodes: 1.21.0
- updatenotification: 1.22.0
- user_oidc: 7.4.0
- user_status: 1.12.0
- viewer: 5.0.0-dev.0
- weather_status: 1.12.0
- webhook_listeners: 1.3.0
- workflowengine: 2.14.0
Disabled:
- accessibility: 1.10.0
- appointments: 2.4.6 (installed 2.4.6)
- calendar: 5.5.3 (installed 5.5.3)
- carnet: 0.25.6 (installed 0.25.6)
- collectives: 3.1.2 (installed 3.1.2)
- contacts: 7.3.0 (installed 7.3.0)
- cookbook: 0.11.3 (installed 0.11.3)
- dashboard: 7.12.0 (installed 7.1.0)
- deck: 1.15.2 (installed 1.15.2)
- drawio: 3.1.0 (installed 3.1.0)
- encryption: 2.20.0 (installed 2.8.1)
- end_to_end_encryption: 1.17.0 (installed 1.17.0)
- event_update_notification: 2.6.1 (installed 2.6.1)
- files_rightclick: 1.6.0 (installed 1.6.0)
- files_videoplayer: 1.13.0
- fileslibreofficeedit: 2.0.1 (installed 2.0.1)
- forms: 5.1.2 (installed 5.1.2)
- groupfolders: 19.1.3 (installed 19.1.3)
- integration_whiteboard: 0.0.14 (installed 0.0.14)
- mail: 5.4.0 (installed 5.4.0)
- notes: 4.12.3 (installed 4.12.3)
- notify_push: 1.2.0 (installed 1.2.0)
- passwords: 2025.7.20 (installed 2025.7.20)
- photos: 5.0.0-dev.1 (installed 5.0.0-dev.1)
- polls: 8.4.6 (installed 8.4.6)
- previewgenerator: 5.10.0 (installed 5.10.0)
- quicknotes: 0.8.30 (installed 0.8.30)
- richdocuments: 8.7.4 (installed 8.7.4)
- richdocumentscode: 25.4.403 (installed 25.4.403)
- sharebymail: 1.22.0 (installed 1.22.0)
- suspicious_login: 10.0.0-dev.0 (installed 10.0.0-dev.0)
- twofactor_nextcloud_notification: 6.0.0-dev.0
- twofactor_totp: 14.0.0
- user_ldap: 1.23.0 (installed 1.21.0)
