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Sorry to hear you’re facing problems. 
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Getting help
In order to help you as efficiently (and quickly!) as possible, please fill in as much of the below requested information as you can.
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):
32.0.0
- Operating system and version (e.g., Ubuntu 24.04):
debian 12.6
- Web server and version (e.g, Apache 2.4.25):
Apache
- Reverse proxy and version _(e.g. nginx 1.27.2)
nginx 1.22
- PHP version (e.g, 8.3):
8.4
- Is this the first time you’ve seen this error? (Yes / No):
yes
- When did this problem seem to first start?
after upgrade from 31 to 32
- Installation method (e.g. AlO, NCP, Bare Metal/Archive, etc.)
docker
- Are you using CloudfIare, mod_security, or similar? (Yes / No)
no
Summary of the issue you are facing:
After upgrading to NC32 some applications are not working anymore:
- Nextcloud Office
- Team Folders
So I tried to uninstall and reinstall these apps without success. Nextcloud Office is installed, but I cannot edit something in the backend nor can configure the Office server in the administration settings.
Team Folders cannot be installed. Error “json_decode …”
On server there is no groupfolder app in the /apps dir.
Steps to replicate it (hint: details matter!):
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.
{"reqId":"ldG0FaMyVgxWgAzXxzOu","level":3,"time":"2025-10-01T13:06:09+00:00","remoteAddr":"10.10.0.1","user":"marcus@floeser.net","app":"settings","method":"POST","url":"/settings/apps/enable","message":"could not enable apps","userAgent":"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/140.0.0.0 Safari/537.36","version":"32.0.0.13","exception":{"Exception":"TypeError","Message":"json_decode(): Argument #1 ($json) must be of type string, null given","Code":0,"Trace":[{"file":"/var/www/html/custom_apps/groupfolders/lib/Folder/FolderManager.php","line":553,"function":"json_decode","args":[null,true]},{"file":"/var/www/html/custom_apps/groupfolders/lib/Folder/FolderManager.php","line":87,"function":"rowToFolder","class":"OCA\\GroupFolders\\Folder\\FolderManager","type":"->","args":[{"folder_id":1,"mount_point":"MontafreundeVorstand","quota":-4,"acl":0,"storage_id":2,"root_id":55251,"options":null}]},{"file":"/var/www/html/custom_apps/groupfolders/lib/Migration/WrongDefaultQuotaRepairStep.php","line":32,"function":"getAllFolders","class":"OCA\\GroupFolders\\Folder\\FolderManager","type":"->","args":[]},{"file":"/var/www/html/lib/private/Repair.php","line":107,"function":"run","class":"OCA\\GroupFolders\\Migration\\WrongDefaultQuotaRepairStep","type":"->","args":[{"__class__":"OC\\Repair"}]},{"file":"/var/www/html/lib/private/legacy/OC_App.php","line":574,"function":"run","class":"OC\\Repair","type":"->","args":[]},{"file":"/var/www/html/lib/private/Installer.php","line":548,"function":"executeRepairSteps","class":"OC_App","type":"::","args":["groupfolders",{"step":"OCA\\GroupFolders\\Migration\\WrongDefaultQuotaRepairStep"}]},{"file":"/var/www/html/lib/private/Installer.php","line":93,"function":"installAppLastSteps","class":"OC\\Installer","type":"->","args":["/var/www/html/custom_apps/groupfolders",{"id":"groupfolders","name":"Team folders","summary":"Admin configured folders shared with everyone in a team","description":"Admin configured folders shared with everyone in a team.\n\nFolders can be configured from *Team folders* in the admin settings.\n\nAfter a folder is created, the admin can give access to the folder to one or more teams, control their write/sharing permissions and assign a quota for the folder.\nAs of Hub 10/Nextcloud 31, the admin needs to be a part of the team to be able to assign it a Teamfolder.\n","version":"20.1.0","licence":"agpl","author":["Robin Appelman"],"namespace":"GroupFolders","types":["filesystem","dav"],"category":["files"],"website":"https://github.com/nextcloud/groupfolders","bugs":"https://github.com/nextcloud/groupfolders/issues","repository":{"@attributes":{"type":"git"},"@value":"https://github.com/nextcloud/groupfolders.git"},"screenshot":["https://raw.githubusercontent.com/nextcloud/groupfolders/master/screenshots/folders.png","https://raw.githubusercontent.com/nextcloud/groupfolders/master/screenshots/edit.png","https://raw.githubusercontent.com/nextcloud/groupfolders/master/screenshots/permissions.png"],"dependencies":{"nextcloud":{"@attributes":{"min-version":"32","max-version":"32"}},"backend":[]},"background-jobs":["OCA\\GroupFolders\\BackgroundJob\\ExpireGroupVersions","OCA\\GroupFolders\\BackgroundJob\\ExpireGroupTrash"],"repair-steps":{"post-migration":{"step":"OCA\\GroupFolders\\Migration\\WrongDefaultQuotaRepairStep"},"install":[],"pre-migration":[],"live-migration":[],"uninstall":[]},"commands":["OCA\\GroupFolders\\Command\\ExpireGroup\\ExpireGroupBase","OCA\\GroupFolders\\Command\\ListCommand","OCA\\GroupFolders\\Command\\ACL","OCA\\GroupFolders\\Command\\Quota","OCA\\GroupFolders\\Command\\Group","OCA\\GroupFolders\\Command\\Create","OCA\\GroupFolders\\Command\\Rename","OCA\\GroupFolders\\Command\\Delete","OCA\\GroupFolders\\Command\\Scan","OCA\\GroupFolders\\Command\\Trashbin\\Cleanup"],"settings":{"admin":["OCA\\GroupFolders\\Settings\\Admin"],"admin-section":["OCA\\GroupFolders\\Settings\\Section"],"personal":[],"personal-section":[]},"sabre":{"collections":{"collection":"OCA\\GroupFolders\\DAV\\RootCollection"},"plugins":{"plugin":["OCA\\GroupFolders\\DAV\\PropFindPlugin","OCA\\GroupFolders\\DAV\\ACLPlugin"]}},"trash":{"backend":{"@attributes":{"for":"OCA\\GroupFolders\\Mount\\GroupFolderStorage"},"@value":"OCA\\GroupFolders\\Trash\\TrashBackend"}},"versions":{"backend":{"@attributes":{"for":"OCA\\GroupFolders\\Mount\\GroupFolderStorage"},"@value":"OCA\\GroupFolders\\Versions\\VersionsBackend"}},"info":[],"remote":[],"public":[],"two-factor-providers":[],"activity":{"filters":[],"settings":[],"providers":[]}},null,"no"]},{"file":"/var/www/html/apps/settings/lib/Controller/AppSettingsController.php","line":574,"function":"installApp","class":"OC\\Installer","type":"->","args":["groupfolders"]},{"file":"/var/www/html/lib/private/AppFramework/Http/Dispatcher.php","line":204,"function":"enableApps","class":"OCA\\Settings\\Controller\\AppSettingsController","type":"->","args":[["groupfolders"],[]]},{"file":"/var/www/html/lib/private/AppFramework/Http/Dispatcher.php","line":118,"function":"executeController","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->","args":[{"__class__":"OCA\\Settings\\Controller\\AppSettingsController"},"enableApps"]},{"file":"/var/www/html/lib/private/AppFramework/App.php","line":153,"function":"dispatch","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->","args":[{"__class__":"OCA\\Settings\\Controller\\AppSettingsController"},"enableApps"]},{"file":"/var/www/html/lib/private/Route/Router.php","line":321,"function":"main","class":"OC\\AppFramework\\App","type":"::","args":["OCA\\Settings\\Controller\\AppSettingsController","enableApps",{"__class__":"OC\\AppFramework\\DependencyInjection\\DIContainer"},{"_route":"settings.appsettings.enableapps"}]},{"file":"/var/www/html/lib/base.php","line":1061,"function":"match","class":"OC\\Route\\Router","type":"->","args":["/settings/apps/enable"]},{"file":"/var/www/html/index.php","line":25,"function":"handleRequest","class":"OC","type":"::","args":[]}],"File":"/var/www/html/custom_apps/groupfolders/lib/Folder/FolderManager.php","Line":553,"message":"could not enable apps","exception":[],"CustomMessage":"could not enable apps"},"id":"68dd297986352"}
Web Browser
If the problem is related to the Web interface, open your browser inspector Console and Network tabs while refreshing (reloading) and reproducing the problem. Provide any relevant output/errors here that appear.
PASTE
Web server / Reverse Proxy
The output of your Apache/nginx/system log in /var/log/____:
PASTE HERE
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": {
"htaccess.RewriteBase": "\/",
"memcache.local": "\\OC\\Memcache\\APCu",
"apps_paths": [
{
"path": "\/var\/www\/html\/apps",
"url": "\/apps",
"writable": false
},
{
"path": "\/var\/www\/html\/custom_apps",
"url": "\/custom_apps",
"writable": true
}
],
"memcache.distributed": "\\OC\\Memcache\\Redis",
"memcache.locking": "\\OC\\Memcache\\Redis",
"redis": {
"host": "***REMOVED SENSITIVE VALUE***",
"password": "***REMOVED SENSITIVE VALUE***",
"port": 6379
},
"overwriteprotocol": "https",
"trusted_proxies": "***REMOVED SENSITIVE VALUE***",
"forwarded_for_headers": [
"HTTP_X_FORWARDED_FOR"
],
"upgrade.disable-web": true,
"instanceid": "***REMOVED SENSITIVE VALUE***",
"passwordsalt": "***REMOVED SENSITIVE VALUE***",
"secret": "***REMOVED SENSITIVE VALUE***",
"trusted_domains": [
"cloud.floeser.net:8088",
"cloud.floeser.net",
"office.floeser.net",
"cloud.montafreunde.de"
],
"datadirectory": "***REMOVED SENSITIVE VALUE***",
"dbtype": "mysql",
"version": "32.0.0.13",
"overwrite.cli.url": "https:\/\/cloud.floeser.net",
"dbname": "***REMOVED SENSITIVE VALUE***",
"dbhost": "***REMOVED SENSITIVE VALUE***",
"dbport": "",
"dbtableprefix": "oc_",
"mysql.utf8mb4": true,
"dbuser": "***REMOVED SENSITIVE VALUE***",
"dbpassword": "***REMOVED SENSITIVE VALUE***",
"installed": true,
"ldapProviderFactory": "OCA\\User_LDAP\\LDAPProviderFactory",
"maintenance": false,
"mail_smtpmode": "smtp",
"mail_smtpsecure": "ssl",
"mail_sendmailmode": "smtp",
"mail_from_address": "***REMOVED SENSITIVE VALUE***",
"mail_domain": "***REMOVED SENSITIVE VALUE***",
"mail_smtphost": "***REMOVED SENSITIVE VALUE***",
"mail_smtpport": "465",
"mail_smtpauth": true,
"mail_smtpname": "***REMOVED SENSITIVE VALUE***",
"mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
"default_phone_region": "DE",
"maintenance_window_start": 1,
"memories.db.triggers.fcu": true,
"memories.exiftool": "\/var\/www\/html\/custom_apps\/memories\/bin-ext\/exiftool-amd64-glibc",
"memories.vod.path": "\/var\/www\/html\/custom_apps\/memories\/bin-ext\/go-vod-amd64",
"loglevel": 0,
"app_install_overwrite": [
"bookmarks",
"memories",
"news",
"camerarawpreviews"
]
}
}
Apps
The output of occ app:list (if possible).
Enabled:
- bookmarks: 15.2.0
- camerarawpreviews: 0.8.7
- 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_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
- logreader: 5.0.0-dev.0
- lookup_server_connector: 1.20.0
- music: 2.3.0
- notifications: 5.0.0-dev.0
- oauth2: 1.20.0
- password_policy: 4.0.0-dev.0
- photos: 5.0.0-dev.1
- privacy: 4.0.0-dev.0
- profile: 1.1.0
- provisioning_api: 1.22.0
- richdocuments: 9.0.0
- serverinfo: 4.0.0-dev.0
- settings: 1.15.1
- sharebymail: 1.22.0
- support: 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_ldap: 1.23.0
- user_status: 1.12.0
- viewer: 5.0.0-dev.0
- workflowengine: 2.14.0
Disabled:
- activity: 5.0.0-dev.0 (installed 4.0.0)
- admin_audit: 1.22.0
- app_api: 32.0.0 (installed 5.0.2)
- bruteforcesettings: 5.0.0-dev.0 (installed 4.0.0)
- circles: 32.0.0 (installed 32.0.0)
- dashboard: 7.12.0 (installed 7.11.0)
- encryption: 2.20.0
- files_external: 1.24.0
- firstrunwizard: 5.0.0-dev.0 (installed 4.0.0)
- groupfolders: 20.1.0 (installed 19.1.5)
- memories: 7.6.2 (installed 7.6.2)
- news: 27.0.0 (installed 27.0.0)
- nextcloud_announcements: 4.0.0-dev.0 (installed 3.0.0)
- recommendations: 5.0.0-dev.0 (installed 5.0.0-dev.0)
- related_resources: 3.0.0-dev.0 (installed 3.0.0-dev.0)
- survey_client: 4.0.0-dev.0 (installed 3.0.0)
- suspicious_login: 10.0.0-dev.0
- twofactor_nextcloud_notification: 6.0.0-dev.0
- twofactor_totp: 14.0.0
- weather_status: 1.12.0 (installed 1.11.0)
- webhook_listeners: 1.3.0 (installed 1.2.0)
Tips for increasing the likelihood of a response
- Use the
preformatted textformatting option in the editor for all log entries and configuration output. - If screenshots are useful, feel free to include them.
- If possible, also include key error output in text form so it can be searched for.
- Try to edit log output only minimally (if at all) so that it can be ran through analyzers / formatters by those trying to help you.