Support intro
Sorry to hear you’re facing problems. 
The community help forum (help.nextcloud.com) is for home and non-enterprise users. Support is provided by other community members on a best effort / “as available” basis. All of those responding are volunteering their time to help you.
If you’re using Nextcloud in a business/critical setting, paid and SLA-based support services can be accessed via portal.nextcloud.com where Nextcloud engineers can help ensure your business keeps running smoothly.
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):
- 31.0.6
- Operating system and version (e.g., Ubuntu 24.04):
- Unraid 7.1.4
- Web server and version (e.g, Apache 2.4.25):
- Unraid AIO Version
- Reverse proxy and version _(e.g. nginx 1.27.2)
- nginx 1.0.1
- 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?
- 2 days ago after some cert problems
- Installation method (e.g. AlO, NCP, Bare Metal/Archive, etc.)
- AIO
- Are you using CloudfIare, mod_security, or similar? (Yes / No)
- no
Summary of the issue you are facing:
Kalender können nicht geladen werden. Termine können nicht angelegt werden.
Steps to replicate it (hint: details matter!):
Ich hatte vor kurzem ein Problem mit den Letsencrypt Zertifikaten. Diese haben den gesamten Login unmöglich gemacht. Diesen Fehler konnte ich beheben und die Nextcloud ist normal erreichbar. Heute ist mir aufgefallen, dass ich keinerlei Kalender anlegen kann und auch keine Termine. Unter der Protokollierung tauchen aber keine wirklichen Fehler auf.
Log entries
|Fehler|app_api|ConnectExceptioncURL error 6: Could not resolve host: nextcloud-aio-docker-socket-proxy (see libcurl - Error Codes) for http://nextcloud-aio-docker-socket-proxy:2375/v1.41/_ping
Could not connect to Docker daemon via http://nextcloud-aio-docker-socket-proxy:2375/v1.41/_ping|
| — | — |
| Info | no app in context | RouteNotFoundExceptionUnable to generate a URL for the named route “tasks.page.index” as such route does not exist. | 03.07.2025, 12:06:26 | |
|---|---|---|---|---|
| Info | no app in context | RouteNotFoundExceptionUnable to generate a URL for the named route “notes.page.index” as such route does not exist. | 03.07.2025, 12:06:26 | |
| Info | no app in context | RouteNotFoundExceptionUnable to generate a URL for the named route “mail.page.index” as such route does not exist. | 03.07.2025, 12:06:26 | |
| Info | no app in context | RouteNotFoundExceptionUnable to generate a URL for the named route “calendar.view.index” as such route does not exist. | 03.07.2025, 12:06:26 |
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.