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
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- Official documentation (searchable and regularly updated)
- How to topics and FAQs
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(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).
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The Basics
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Server configuration detail
Operating system: Linux 6.12.15-production+truenas #1 SMP PREEMPT_DYNAMIC Mon Sep 8 18:50:34 UTC 2025 x86_64
Webserver: Apache/2.4.65 (Debian) (apache2handler)
Database: pgsql PostgreSQL 17.6 (Debian 17.6-1.pgdg12+1) on x86_64-pc-linux-gnu, compiled by gcc (Debian 12.2.0-14+deb12u1) 12.2.0, 64-bit
PHP version: 8.3.25
Modules loaded: Core, date, libxml, openssl, pcre, sqlite3, zlib, ctype, curl, dom, fileinfo, filter, hash, iconv, json, mbstring, SPL, session, PDO, pdo_sqlite, standard, posix, random, Reflection, Phar, SimpleXML, tokenizer, xml, xmlreader, xmlwriter, mysqlnd, apache2handler, apcu, bcmath, exif, ftp, gd, gmp, igbinary, imagick, intl, ldap, memcached, pcntl, pdo_mysql, pdo_pgsql, redis, sodium, sysvsem, zip, Zend OPcache
Nextcloud version: 31.0.9 - 31.0.9.1
Updated from an older Nextcloud/ownCloud or fresh install:
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Is this the first time you’ve seen this error? (Yes / No):
no
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When did this problem seem to first start?
iOS sync
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Installation method (e.g. AlO, NCP, Bare Metal/Archive, etc.)
App in Truenas (Docker)
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Are you using CloudfIare, mod_security, or similar? (Yes / No)
?
Summary of the issue you are facing
syncing with macOS and iOS does not work
Steps to replicate it (hint: details matter!):
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download macOS config file from nextcloud
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install config on Mac OS x
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error appears: DAAccountValidationDomain:100
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next test: try to access Https://next.mydomain.com:30127/.well-known/carddav
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results also in an error … Fehler: „Load cannot follow more than 20 redirections" (:0)
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.
Fehler
webdav
ServiceUnavailable
Sabre\DAV\Exception\NotFound:
22.09.2025, 20:07:33
Fehler
no app in context
NotFound
Exception thrown: Sabre\DAV\Exception\NotFound
Exception thrown: Sabre\DAV\Exception\NotFound
22.09.2025, 20:07:33
