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Sorry to hear you’re facing problems 
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In order to help you as quickly as possible, before clicking Create Topic please provide as much of the below as you can. Feel free to use a pastebin service for logs, otherwise either indent short log examples with four spaces:
example
Or for longer, use three backticks above and below the code snippet:
longer
example
here
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 
Nextcloud version (eg, 20.0.5): 25.0.7
Operating system and version (eg, Ubuntu 20.04): Debian 11 (Bullseye)
Apache or nginx version (eg, Apache 2.4.25): Apache 2.4.56
PHP version (eg, 7.4): 8.0.28
The issue you are facing:
After update from Nextcloud 25.0.6 I have got the issue:
Your web server is not yet properly set up to allow file synchronisation, because the WebDAV interface seems to be broken.
I have checked once again by restore snapshot before update and WebDAV works with no issue. After update I have got the issue.
Is this the first time you’ve seen this error? (Y/N): YES
Steps to replicate it:
- Upgrade Nextcloud 25.0.6 to 25.0.7
The output of your Nextcloud log in Admin > Logging:
[webdav] Error: Error: Cannot use object of type OC\Files\Node\LazyUserFolder as array at <<closure>>
0. /var/www/html/nextcloud/apps/end_to_end_encryption/lib/E2EEnabledPathCache.php line 56
OCA\EndToEndEncryption\E2EEnabledPathCache->getEncryptedStates()
1. /var/www/html/nextcloud/apps/end_to_end_encryption/lib/Connector/Sabre/APlugin.php line 105
OCA\EndToEndEncryption\E2EEnabledPathCache->isE2EEnabledPath()
2. /var/www/html/nextcloud/apps/end_to_end_encryption/lib/Connector/Sabre/RedirectRequestPlugin.php line 187
OCA\EndToEndEncryption\Connector\Sabre\APlugin->isE2EEnabledPath()
3. /var/www/html/nextcloud/3rdparty/sabre/event/lib/WildcardEmitterTrait.php line 89
OCA\EndToEndEncryption\Connector\Sabre\RedirectRequestPlugin->propFind()
4. /var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php line 1052
Sabre\DAV\Server->emit()
5. /var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php line 984
Sabre\DAV\Server->getPropertiesByNode()
6. /var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php line 1662
Sabre\DAV\Server->getPropertiesIteratorForPath()
7. /var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php line 1647
Sabre\DAV\Server->writeMultiStatus()
8. /var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/CorePlugin.php line 346
Sabre\DAV\Server->generateMultiStatus()
9. /var/www/html/nextcloud/3rdparty/sabre/event/lib/WildcardEmitterTrait.php line 89
Sabre\DAV\CorePlugin->httpPropFind()
10. /var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php line 472
Sabre\DAV\Server->emit()
11. /var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php line 253
Sabre\DAV\Server->invokeMethod()
12. /var/www/html/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php line 321
Sabre\DAV\Server->start()
13. /var/www/html/nextcloud/apps/dav/appinfo/v1/webdav.php line 85
Sabre\DAV\Server->exec()
14. /var/www/html/nextcloud/remote.php line 172
require_once("/var/www/html/n ... p")
PROPFIND /remote.php/webdav
from x.x.x.x by XYZ at 2023-05-26T11:20:25+00:00
The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):
<?php
$CONFIG = array (
'instanceid' => 'xyz',
'passwordsalt' => '***',
'secret' => '***',
'trusted_domains' =>
array (
0 => 'x.x.x.x',
1 => 'x.domain.com',
),
'datadirectory' => '/var/www/html/nextcloud/data',
'log_type' => 'file',
'logfile' => '/var/log/nextcloud.log',
'loglevel' => 2,
'dbtype' => 'mysql',
'version' => '25.0.7.1',
'overwrite.cli.url' => 'http://x.x.x.x',
'dbname' => 'DB_NAME',
'dbhost' => 'DB_HOST',
'dbport' => '',
'dbtableprefix' => 'oc_',
'mysql.utf8mb4' => true,
'dbuser' => 'DB_USER',
'dbpassword' => '***',
'installed' => true,
'memcache.local' => '\\OC\\Memcache\\APCu',
'maintenance' => false,
'theme' => '',
'updater.release.channel' => 'stable',
'app_install_overwrite' =>
array (
0 => 'occweb',
1 => 'emlviewer',
2 => 'workflow_pdf_converter',
3 => 'bruteforcesettings',
4 => 'end_to_end_encryption',
5 => 'twofactor_admin',
),
'encryption.legacy_format_support' => false,
'encryption.key_storage_migrated' => false,
'default_phone_region' => 'XX',
'mail_smtpmode' => 'smtp',
'mail_smtpsecure' => 'ssl',
'mail_sendmailmode' => 'smtp',
'mail_from_address' => 'xxx',
'mail_domain' => 'xxx',
'mail_smtpauthtype' => 'LOGIN',
'mail_smtpauth' => 1,
'mail_smtphost' => 'xxx',
'mail_smtpport' => '465',
'mail_smtpname' => 'xxx@xxx.xxx',
'mail_smtppassword' => '***',
'updater.secret' => '*****',
);
The output of your Apache/nginx/system log in /var/log/____:
[Fri May 26 12:43:59.617596 2023] [access_compat:error] [pid 1205869] [client x.x.x.x:8988] AH01797: client denied by server configuration: /var/www/html/nextcloud/data/.ocdata
[Fri May 26 12:46:49.656395 2023] [ssl:error] [pid 1205958] [client x.x.x.x:7996] AH02031: Hostname xxx.xxx.xx provided via SNI, but no hostname provided in HTTP request
[Fri May 26 12:46:55.890310 2023] [access_compat:error] [pid 1205958] [client x.x.x.x:9139] AH01797: client denied by server configuration: /var/www/html/nextcloud/data/.ocdata
[Fri May 26 12:51:19.138278 2023] [access_compat:error] [pid 1205865] [client x.x.x.x:9351] AH01797: client denied by server configuration: /var/www/html/nextcloud/data/.ocdata
[Fri May 26 13:05:15.777306 2023] [access_compat:error] [pid 1206117] [client x.x.x.x:9829] AH01797: client denied by server configuration: /var/www/html/nextcloud/data/.ocdata
[Fri May 26 13:20:25.677554 2023] [access_compat:error] [pid 1205952] [client x.x.x.x:10382] AH01797: client denied by server configuration: /var/www/html/nextcloud/data/.ocdata
[Fri May 26 13:30:40.234644 2023] [access_compat:error] [pid 1206029] [client x.x.x.x:10724] AH01797: client denied by server configuration: /var/www/html/nextcloud/data/.ocdata
Output errors in nextcloud.log in /var/www/ or as admin user in top right menu, filtering for errors. Use a pastebin service if necessary.
NO nextcloud.log file in place '/var/log/nextcloud.log'
