Support intro
Sorry to hear you’re facing problems 
help.nextcloud.com is for home/non-enterprise users. If you’re running a business, paid support can be accessed via portal.nextcloud.com where we can ensure your business keeps running smoothly.
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): 28.0.1.1
Operating system and version (eg, Ubuntu 20.04): Centos 9
Apache or nginx version (eg, Apache 2.4.25): nginx/1.22.1
PHP version (eg, 7.4): PHP 8.1.27
The issue you are facing:
Is this the first time you’ve seen this error? (Y/N):
Steps to replicate it:
- open Administration setting
- open Admin > Logging
- entries from the log file are not loaded, the page remains blank.
the occ log:tail command works correctly
The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):
<?php
$CONFIG = array (
'instanceid' => 'XXXXXX',
'passwordsalt' => 'XXXXXX',
'secret' => 'XXXXXX',
'trusted_domains' =>
array (
0 => 'domain.ru',
1 => '192.168.66.10',
),
'datadirectory' => '/data/nextcloud-d',
'overwrite.cli.url' => 'https://domain.ru',
'overwriteprotocol' => 'https',
'dbtype' => 'mysql',
'version' => '28.0.1.1',
'dbname' => 'nextcloud',
'dbhost' => 'localhost',
'dbport' => '',
'dbtableprefix' => 'oc_',
'dbuser' => 'XXXXXX',
'dbpassword' => 'XXXXXX',
'installed' => true,
'mysql.utf8mb4' => true,
'updater.release.channel' => 'stable',
'theme' => '',
'htaccess.RewriteBase' => '/',
'memcache.local' => '\\OC\\Memcache\\Redis',
'filelocking.enabled' => true,
'memcache.distributed' => '\\OC\\Memcache\\Redis',
'memcache.locking' => '\\OC\\Memcache\\Redis',
'redis' =>
array (
'host' => '127.0.0.1',
'port' => 6379,
),
'maintenance' => false,
'loglevel' => 2,
'logfile' => '/var/log/nextcloud/nextcloud.log',
'mail_smtpmode' => 'smtp',
'mail_from_address' => 'XXXXXX',
'mail_domain' => 'XXXXXX',
'mail_sendmailmode' => 'smtp',
'mail_smtpsecure' => 'ssl',
'mail_smtpauthtype' => 'LOGIN',
'mail_smtpauth' => 1,
'mail_smtphost' => 'smtp.XXXXXX',
'mail_smtpport' => '465',
'mail_smtpname' => 'XXXXXX',
'mail_smtppassword' => 'XXXXXX',
'enable_previews' => true,
'enabledPreviewProviders' =>
array (
0 => 'OC\\Preview\\PDF',
1 => 'OC\\Preview\\BMP',
2 => 'OC\\Preview\\GIF',
3 => 'OC\\Preview\\JPEG',
4 => 'OC\\Preview\\PNG',
5 => 'OC\\Preview\\TXT',
6 => 'OC\\Preview\\TIFF',
7 => 'OC\\Preview\\XBitmap',
),
'data-fingerprint' => 'XXXXXX',
);
The output of your Apache/nginx/system log in /var/log/____:
192.168.66.5 - - [18/Jan/2024:21:53:19 +0300] "GET /settings/admin/logging HTTP/2.0" 200 13354 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"
192.168.66.5 - - [18/Jan/2024:21:53:20 +0300] "GET /apps/theming/theme/default.css?plain=1&v=6cef4735 HTTP/2.0" 200 1093 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"
192.168.66.5 - - [18/Jan/2024:21:53:20 +0300] "GET /apps/theming/theme/opendyslexic.css?plain=0&v=6cef4735 HTTP/2.0" 200 336 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"
192.168.66.5 - - [18/Jan/2024:21:53:20 +0300] "GET /apps/theming/theme/light.css?plain=0&v=6cef4735 HTTP/2.0" 200 1118 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"
192.168.66.5 - - [18/Jan/2024:21:53:20 +0300] "GET /apps/theming/theme/dark.css?plain=1&v=6cef4735 HTTP/2.0" 200 1079 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"
192.168.66.5 - - [18/Jan/2024:21:53:20 +0300] "GET /apps/theming/theme/dark-highcontrast.css?plain=0&v=6cef4735 HTTP/2.0" 200 1187 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"
192.168.66.5 - - [18/Jan/2024:21:53:20 +0300] "GET /apps/theming/theme/dark-highcontrast.css?plain=1&v=6cef4735 HTTP/2.0" 200 1161 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"
192.168.66.5 - - [18/Jan/2024:21:53:20 +0300] "GET /apps/theming/theme/light-highcontrast.css?plain=0&v=6cef4735 HTTP/2.0" 200 1168 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"
192.168.66.5 - - [18/Jan/2024:21:53:20 +0300] "GET /apps/theming/theme/light-highcontrast.css?plain=1&v=6cef4735 HTTP/2.0" 200 1142 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"
192.168.66.5 - - [18/Jan/2024:21:53:20 +0300] "GET /apps/theming/theme/light.css?plain=1&v=6cef4735 HTTP/2.0" 200 1093 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"
192.168.66.5 - - [18/Jan/2024:21:53:20 +0300] "GET /apps/theming/theme/dark.css?plain=0&v=6cef4735 HTTP/2.0" 200 1102 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"
192.168.66.5 - - [18/Jan/2024:21:53:20 +0300] "GET /js/core/merged-template-prepend.js?v=882edf21-2 HTTP/2.0" 304 0 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"
192.168.66.5 - - [18/Jan/2024:21:53:20 +0300] "GET /ocs/v2.php/apps/user_status/api/v1/user_status HTTP/2.0" 200 160 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"
192.168.66.5 - - [18/Jan/2024:21:53:20 +0300] "PUT /ocs/v2.php/apps/user_status/api/v1/heartbeat?format=json HTTP/2.0" 200 160 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"
192.168.66.5 - - [18/Jan/2024:21:53:20 +0300] "GET /ocs/v2.php/search/providers?from=%2Fsettings%2Fadmin%2Flogging HTTP/2.0" 200 585 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"
192.168.66.5 - - [18/Jan/2024:21:53:20 +0300] "GET /ocs/v2.php/apps/notifications/api/v2/notifications HTTP/2.0" 200 81 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"
192.168.66.5 - - [18/Jan/2024:21:53:20 +0300] "GET /apps/theming/manifest/settings?v=6cef4735 HTTP/2.0" 200 288 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"
192.168.66.5 - - [18/Jan/2024:21:53:20 +0300] "GET /avatar/my_users/64/dark?v=1 HTTP/2.0" 304 0 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"
192.168.66.5 - - [18/Jan/2024:21:53:20 +0300] "POST /contactsmenu/contacts HTTP/2.0" 200 2554 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"
192.168.66.5 - - [18/Jan/2024:21:53:20 +0300] "GET /apps/theming/icon/settings?v=2 HTTP/2.0" 304 0 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"