****RESOLVED****-Internal Server Error: If this happens again, please send the technical details below to the server administrator

RESOLVED - Turned out to be drive issues/hardware related

Hello,

I’m not sure what event caused this to start happening but now all users get the same error splash page when trying to log into Nextcloud:

Internal Server Error

  • The server was unable to complete your request.*

  • If this happens again, please send the technical details below to the server administrator.*

  • More details can be found in the server log.*

  • Technical details*

  • Remote Address: xx.xx.xx.xxx*

  • Request ID: GhhXgHATezaq1Gu6r7bq*

Here are the logs. First the nextcloud:

Or for longer, use three backticks above and below the code snippet:

{"reqId":"GhhXgHATezaq1Gu6r7bq","level":3,"time":"2023-04-17T12:01:35+00:00","remoteAddr":"97.99.31.241","user":"--","app":"index","method":"POST","url":"/nextcloud/login","message":"Lost connection to LDAP server.","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0","version":"24.0.7.1","exception":{"Exception":"OC\\ServerNotAvailableException","Message":"Lost connection to LDAP server.","Code":0,"Trace":[{"file":"/var/www/html/apps/user_ldap/lib/LDAP.php","line":407,"function":"processLDAPError","class":"OCA\\User_LDAP\\LDAP","type":"->"},{"file":"/var/www/html/apps/user_ldap/lib/LDAP.php","line":308,"function":"postFunctionCall","class":"OCA\\User_LDAP\\LDAP","type":"->"},{"file":"/var/www/html/apps/user_ldap/lib/LDAP.php","line":248,"function":"invokeLDAPMethod","class":"OCA\\User_LDAP\\LDAP","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/html/apps/user_ldap/lib/Connection.php","line":653,"function":"startTls","class":"OCA\\User_LDAP\\LDAP","type":"->"},{"file":"/var/www/html/apps/user_ldap/lib/Connection.php","line":602,"function":"doConnect","class":"OCA\\User_LDAP\\Connection","type":"->"},{"file":"/var/www/html/apps/user_ldap/lib/Connection.php","line":228,"function":"establishConnection","class":"OCA\\User_LDAP\\Connection","type":"->"},{"file":"/var/www/html/apps/user_ldap/lib/Connection.php","line":236,"function":"init","class":"OCA\\User_LDAP\\Connection","type":"->"},{"file":"/var/www/html/apps/user_ldap/lib/Access.php","line":1105,"function":"getConnectionResource","class":"OCA\\User_LDAP\\Connection","type":"->"},{"file":"/var/www/html/apps/user_ldap/lib/Access.php","line":1285,"function":"executeSearch","class":"OCA\\User_LDAP\\Access","type":"->"},{"file":"/var/www/html/apps/user_ldap/lib/Access.php","line":972,"function":"search","class":"OCA\\User_LDAP\\Access","type":"->"},{"file":"/var/www/html/apps/user_ldap/lib/Access.php","line":871,"function":"searchUsers","class":"OCA\\User_LDAP\\Access","type":"->"},{"file":"/var/www/html/apps/user_ldap/lib/Access.php","line":851,"function":"fetchListOfUsers","class":"OCA\\User_LDAP\\Access","type":"->"},{"file":"/var/www/html/apps/user_ldap/lib/User_LDAP.php","line":163,"function":"fetchUsersByLoginName","class":"OCA\\User_LDAP\\Access","type":"->"},{"file":"/var/www/html/apps/user_ldap/lib/User_LDAP.php","line":126,"function":"getLDAPUserByLoginName","class":"OCA\\User_LDAP\\User_LDAP","type":"->"},{"function":"loginName2UserName","class":"OCA\\User_LDAP\\User_LDAP","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/html/apps/user_ldap/lib/User_Proxy.php","line":108,"function":"call_user_func_array"},{"file":"/var/www/html/apps/user_ldap/lib/Proxy.php","line":155,"function":"walkBackends","class":"OCA\\User_LDAP\\User_Proxy","type":"->"},{"file":"/var/www/html/apps/user_ldap/lib/User_Proxy.php","line":268,"function":"handleRequest","class":"OCA\\User_LDAP\\Proxy","type":"->"},{"file":"/var/www/html/apps/user_ldap/lib/Helper.php","line":287,"function":"loginName2UserName","class":"OCA\\User_LDAP\\User_Proxy","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/html/lib/private/legacy/OC_Hook.php","line":106,"function":"loginName2UserName","class":"OCA\\User_LDAP\\Helper","type":"::","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/html/lib/public/Util.php","line":415,"function":"emit","class":"OC_Hook","type":"::"},{"file":"/var/www/html/apps/password_policy/lib/ComplianceService.php","line":92,"function":"emitHook","class":"OCP\\Util","type":"::"},{"file":"/var/www/html/apps/password_policy/lib/Listener/BeforeUserLoggedInEventListener.php","line":45,"function":"entryControl","class":"OCA\\Password_Policy\\ComplianceService","type":"->"},{"file":"/var/www/html/lib/private/EventDispatcher/ServiceEventListener.php","line":87,"function":"handle","class":"OCA\\Password_Policy\\Listener\\BeforeUserLoggedInEventListener","type":"->"},{"file":"/var/www/html/3rdparty/symfony/event-dispatcher/EventDispatcher.php","line":251,"function":"__invoke","class":"OC\\EventDispatcher\\ServiceEventListener","type":"->"},{"file":"/var/www/html/3rdparty/symfony/event-dispatcher/EventDispatcher.php","line":73,"function":"callListeners","class":"Symfony\\Component\\EventDispatcher\\EventDispatcher","type":"->"},{"file":"/var/www/html/lib/private/EventDispatcher/EventDispatcher.php","line":88,"function":"dispatch","class":"Symfony\\Component\\EventDispatcher\\EventDispatcher","type":"->"},{"file":"/var/www/html/lib/private/EventDispatcher/EventDispatcher.php","line":100,"function":"dispatch","class":"OC\\EventDispatcher\\EventDispatcher","type":"->"},{"file":"/var/www/html/lib/private/Server.php","line":605,"function":"dispatchTyped","class":"OC\\EventDispatcher\\EventDispatcher","type":"->"},{"function":"OC\\{closure}","class":"OC\\Server","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/html/lib/private/Hooks/EmitterTrait.php","line":106,"function":"call_user_func_array"},{"file":"/var/www/html/lib/private/Hooks/PublicEmitter.php","line":40,"function":"emit","class":"OC\\Hooks\\BasicEmitter","type":"->"},{"file":"/var/www/html/lib/private/Authentication/Login/PreLoginHookCommand.php","line":48,"function":"emit","class":"OC\\Hooks\\PublicEmitter","type":"->"},{"file":"/var/www/html/lib/private/Authentication/Login/Chain.php","line":108,"function":"process","class":"OC\\Authentication\\Login\\PreLoginHookCommand","type":"->"},{"file":"/var/www/html/core/Controller/LoginController.php","line":329,"function":"process","class":"OC\\Authentication\\Login\\Chain","type":"->"},{"file":"/var/www/html/lib/private/AppFramework/Http/Dispatcher.php","line":225,"function":"tryLogin","class":"OC\\Core\\Controller\\LoginController","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/html/lib/private/AppFramework/Http/Dispatcher.php","line":133,"function":"executeController","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->"},{"file":"/var/www/html/lib/private/AppFramework/App.php","line":172,"function":"dispatch","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->"},{"file":"/var/www/html/lib/private/Route/Router.php","line":298,"function":"main","class":"OC\\AppFramework\\App","type":"::"},{"file":"/var/www/html/lib/base.php","line":1030,"function":"match","class":"OC\\Route\\Router","type":"->"},{"file":"/var/www/html/index.php","line":36,"function":"handleRequest","class":"OC","type":"::"}],"File":"/var/www/html/apps/user_ldap/lib/LDAP.php","Line":368,"CustomMessage":"--"}}

Now the Apache2

10.20.30.27 - - [17/Apr/2023:07:01:27 -0500] "GET /nextcloud/login?redirect_url=&direct=1 HTTP/1.1" 200 12820 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0"
10.20.30.27 - - [17/Apr/2023:07:01:28 -0500] "GET /nextcloud/dist/files_sharing-main.js?v=8d53f3bf-0 HTTP/1.1" 200 5044 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0"
10.20.30.27 - - [17/Apr/2023:07:01:28 -0500] "GET /nextcloud/apps/unsplash/api/login.css HTTP/1.1" 500 5105 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0"
10.20.30.27 - - [17/Apr/2023:07:01:35 -0500] "POST /nextcloud/login HTTP/1.1" 500 9247 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0"
10.20.30.27 - - [17/Apr/2023:07:01:46 -0500] "POST /univention/get/session-info HTTP/1.1" 401 4687 "https://cloud.sixteentonweight.com/univention/management/?header=try-hide&overview=false&menu=false" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0"
10.20.30.27 - - [17/Apr/2023:07:01:48 -0500] "GET /nextcloud/index.php/204 HTTP/1.1" 204 1452 "-" "Mozilla/5.0 (Android) Nextcloud-android/3.24.2"
10.20.30.27 - - [17/Apr/2023:07:02:16 -0500] "POST /univention/get/session-info HTTP/1.1" 401 4687 "https://cloud.sixteentonweight.com/univention/management/?header=try-hide&overview=false&menu=false" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0"
10.20.30.27 - - [17/Apr/2023:07:02:46 -0500] "POST /univention/get/session-info HTTP/1.1" 401 4687 "https://cloud.sixteentonweight.com/univention/management/?header=try-hide&overview=false&menu=false" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0"
10.20.30.27 - - [17/Apr/2023:07:03:16 -0500] "POST /univention/get/session-info HTTP/1.1" 401 4687 "https://cloud.sixteentonweight.com/univention/management/?header=try-hide&overview=false&menu=false" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0"
10.20.30.27 - - [17/Apr/2023:07:03:47 -0500] "POST /univention/get/session-info HTTP/1.1" 401 4687 "https://cloud.sixteentonweight.com/univention/management/?header=try-hide&overview=false&menu=false" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0"
10.20.30.27 - - [17/Apr/2023:07:04:17 -0500] "POST /univention/get/session-info HTTP/1.1" 401 4687 "https://cloud.sixteentonweight.com/univention/management/?header=try-hide&overview=false&menu=false" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0"
10.20.30.27 - - [17/Apr/2023:07:04:47 -0500] "POST /univention/get/session-info HTTP/1.1" 401 4687 "https://cloud.sixteentonweight.com/univention/management/?header=try-hide&overview=false&menu=false" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0"
10.20.30.27 - - [17/Apr/2023:07:05:17 -0500] "POST /univention/get/session-info HTTP/1.1" 401 4687 "https://cloud.sixteentonweight.com/univention/management/?header=try-hide&overview=false&menu=false" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0"
10.20.30.27 - - [17/Apr/2023:07:05:48 -0500] "POST /univention/get/session-info HTTP/1.1" 401 4687 "https://cloud.sixteentonweight.com/univention/management/?header=try-hide&overview=false&menu=false" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0"
10.20.30.27 - - [17/Apr/2023:07:06:18 -0500] "POST /univention/get/session-info HTTP/1.1" 401 4687 "https://cloud.sixteentonweight.com/univention/management/?header=try-hide&overview=false&menu=false" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0"
10.20.30.27 - - [17/Apr/2023:07:06:48 -0500] "POST /univention/get/session-info HTTP/1.1" 401 4687 "https://cloud.sixteentonweight.com/univention/management/?header=try-hide&overview=false&menu=false" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0"
10.20.30.27 - - [17/Apr/2023:07:07:18 -0500] "POST /univention/get/session-info HTTP/1.1" 401 4687 "https://cloud.sixteentonweight.com/univention/management/?header=try-hide&overview=false&menu=false" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0"
10.20.30.27 - - [17/Apr/2023:07:07:49 -0500] "POST /univention/get/session-info HTTP/1.1" 401 4687 "https://cloud.sixteentonweight.com/univention/management/?header=try-hide&overview=false&menu=false" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0"
10.20.30.27 - - [17/Apr/2023:07:08:19 -0500] "POST /univention/get/session-info HTTP/1.1" 401 4687 "https://cloud.sixteentonweight.com/univention/management/?header=try-hide&overview=false&menu=false" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0"
10.20.30.27 - - [17/Apr/2023:07:08:49 -0500] "POST /univention/get/session-info HTTP/1.1" 401 4687 "https://cloud.sixteentonweight.com/univention/management/?header=try-hide&overview=false&menu=false" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0"
10.20.30.27 - - [17/Apr/2023:07:09:19 -0500] "POST /univention/get/session-info HTTP/1.1" 401 4687 "https://cloud.sixteentonweight.com/univention/management/?header=try-hide&overview=false&menu=false" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0"
10.20.30.27 - - [17/Apr/2023:07:09:49 -0500] "POST /univention/get/session-info HTTP/1.1" 401 4687 "https://cloud.sixteentonweight.com/univention/management/?header=try-hide&overview=false&menu=false" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0"
10.20.30.27 - - [17/Apr/2023:07:10:20 -0500] "POST /univention/get/session-info HTTP/1.1" 401 4687 "https://cloud.sixteentonweight.com/univention/management/?header=try-hide&overview=false&menu=false" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0"
10.20.30.27 - - [17/Apr/2023:07:10:50 -0500] "POST /univention/get/session-info HTTP/1.1" 401 4687 "https://cloud.sixteentonweight.com/univention/management/?header=try-hide&overview=false&menu=false" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0"
10.20.30.27 - - [17/Apr/2023:07:11:20 -0500] "POST /univention/get/session-info HTTP/1.1" 401 4687 "https://cloud.sixteentonweight.com/univention/management/?header=try-hide&overview=false&menu=false" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0"
10.20.30.27 - - [17/Apr/2023:07:11:51 -0500] "POST /univention/get/session-info HTTP/1.1" 401 4687 "https://cloud.sixteentonweight.com/univention/management/?header=try-hide&overview=false&menu=false" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0"
10.20.30.27 - - [17/Apr/2023:07:12:21 -0500] "POST /univention/get/session-info HTTP/1.1" 401 4687 "https://cloud.sixteentonweight.com/univention/management/?header=try-hide&overview=false&menu=false" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0"
10.20.30.27 - - [17/Apr/2023:07:12:51 -0500] "POST /univention/get/session-info HTTP/1.1" 401 4709 "https://cloud.sixteentonweight.com/univention/management/?header=try-hide&overview=false&menu=false" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0"
10.20.30.27 - - [17/Apr/2023:07:13:21 -0500] "POST /univention/get/session-info HTTP/1.1" 401 4687 "https://cloud.sixteentonweight.com/univention/management/?header=try-hide&overview=false&menu=false" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0"
10.20.30.27 - - [17/Apr/2023:07:13:52 -0500] "POST /univention/get/session-info HTTP/1.1" 401 4687 "https://cloud.sixteentonweight.com/univention/management/?header=try-hide&overview=false&menu=false" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0"
10.20.30.27 - - [17/Apr/2023:07:14:22 -0500] "POST /univention/get/session-info HTTP/1.1" 401 4687 "https://cloud.sixteentonweight.com/univention/management/?header=try-hide&overview=false&menu=false" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0"
10.20.30.27 - - [17/Apr/2023:07:14:52 -0500] "POST /univention/get/session-info HTTP/1.1" 401 4687 "https://cloud.sixteentonweight.com/univention/management/?header=try-hide&overview=false&menu=false" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0"
10.20.30.27 - - [17/Apr/2023:07:15:22 -0500] "POST /univention/get/session-info HTTP/1.1" 401 4687 "https://cloud.sixteentonweight.com/univention/management/?header=try-hide&overview=false&menu=false" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0"
10.20.30.27 - - [17/Apr/2023:07:15:53 -0500] "POST /univention/get/session-info HTTP/1.1" 401 4687 "https://cloud.sixteentonweight.com/univention/management/?header=try-hide&overview=false&menu=false" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0"
10.20.30.27 - - [17/Apr/2023:07:16:23 -0500] "POST /univention/get/session-info HTTP/1.1" 401 4687 "https://cloud.sixteentonweight.com/univention/management/?header=try-hide&overview=false&menu=false" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0"
10.20.30.27 - - [17/Apr/2023:07:16:35 -0500] "GET /nextcloud/index.php/csrftoken HTTP/1.1" 200 5123 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/112.0"

Apache error log

[Mon Apr 17 00:00:02.466144 2023] [mpm_prefork:notice] [pid 1854] AH00163: Apache/2.4.38 (Univention) OpenSSL/1.1.1n mod_wsgi/4.6.5 Python/3.7 configured – resuming normal operations
[Mon Apr 17 00:00:02.466174 2023] [core:notice] [pid 1854] AH00094: Command line: ‘/usr/sbin /apache2’

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 :heart:

[/details]

Nextcloud version (eg, 20.0.5): replace me
Operating system and version (eg, Ubuntu 20.04): replace me
Apache or nginx version (eg, Apache 2.4.25): replace me
PHP version (eg, 7.4): replace me

The issue you are facing:

Is this the first time you’ve seen this error? (Y/N): Y

Steps to replicate it:

  1. Go to main page
  2. Login
  3. Receive error

The output of your Nextcloud log in Admin > Logging:

PASTE HERE

The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):

<?php
$CONFIG = array (
  'passwordsalt' => 'redacted',
  'secret' => 'redacted',
  'trusted_domains' =>
  array (
    0 => 'cloud.sixteentonweight-com.intranet',
    1 => 'xx.xx.xx.xx',
    2 => 'cloud.sixteentonweight.com',
  ),
  'datadirectory' => '/var/lib/univention-appcenter/apps/nextcloud/data/nextcloud-data',
  'dbtype' => 'pgsql',
  'version' => '24.0.7.1',
  'overwrite.cli.url' => 'https://cloud.sixteentonweight-com.intranet/nextcloud',
  'dbname' => 'nextcloud',
  'dbhost' => 'xx.xx.xx.x:5432',
  'dbport' => '',
  'dbtableprefix' => 'oc_',
  'dbuser' => 'nextcloud',
  'dbpassword' => 'redacted',
  'installed' => true,
  'instanceid' => 'oc34dny4wv2w',
  'updatechecker' => false,
  'upgrade.disable-web' => true,
  'memcache.local' => '\\OC\\Memcache\\APCu',
  'memcache.distributed' => '\\OC\\Memcache\\APCu',
  'overwriteprotocol' => 'https',
  'overwritewbroot' => '/nextcloud',
  'htaccess.RewriteBase' => '/nextcloud',
  'ldapProviderFactory' => 'OCA\\User_LDAP\\LDAPProviderFactory',
  'trusted_proxies' =>
  array (
    0 => '172.17.42.1',
  ),
  'one-click-instance' => true,
  'one-click-instance.user-limit' => 500,
  'one-click-instance.link' => 'https://nextcloud.com/univention/',
  'mail_smtpmode' => 'smtp',
  'mail_smtpsecure' => 'tls',
  'mail_sendmailmode' => 'smtp',
  'mail_from_address' => 'ericp72',
  'mail_domain' => 'Gmail.com',
  'mail_smtpauthtype' => 'LOGIN',
  'mail_smtpauth' => 1,
  'mail_smtphost' => 'SMTP.gmail.com',
  'mail_smtpport' => '587',
  'mail_smtpname' => 'ericp72',
  'mail_smtppassword' => 'redacted',
  'maintenance' => false,
  'twofactor_enforced' => 'true',
  'twofactor_enforced_groups' =>
  array (
    0 => 'admin',
  ),
  'twofactor_enforced_excluded_groups' =>
  array (
  ),
  'loglevel' => 2,
);

The output of your Apache/nginx/system log in /var/log/____:

see above

PASTE HERE


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.

{"reqId":"SQcSPCYBRRQHeLBWzU85","level":2,"time":"2023-04-17T12:25:02+00:00","remoteAddr":"","user":"--","app":"support","method":"","url":"--","message":"Can not determine user count for OCA\\User_LDAP\\User_Proxy","userAgent":"--","version":"24.0.7.1","data":{"app":"support"}}
{"reqId":"SQcSPCYBRRQHeLBWzU85","level":3,"time":"2023-04-17T12:25:02+00:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"ldap_start_tls(): Unable to start TLS: Can't contact LDAP server at /var/www/html/apps/user_ldap/lib/LDAP.php#306","userAgent":"--","version":"24.0.7.1","exception":{"Exception":"Error","Message":"ldap_start_tls(): Unable to start TLS: Can't contact LDAP server at /var/www/html/apps/user_ldap/lib/LDAP.php#306","Code":0,"Trace":[{"function":"onError","class":"OC\\Log\\ErrorHandler","type":"::"},{"function":"ldap_start_tls"},{"file":"/var/www/html/apps/user_ldap/lib/LDAP.php","line":306,"function":"call_user_func_array"},{"file":"/var/www/html/apps/user_ldap/lib/LDAP.php","line":248,"function":"invokeLDAPMethod","class":"OCA\\User_LDAP\\LDAP","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/html/apps/user_ldap/lib/Connection.php","line":653,"function":"startTls","class":"OCA\\User_LDAP\\LDAP","type":"->"},{"file":"/var/www/html/apps/user_ldap/lib/Connection.php","line":602,"function":"doConnect","class":"OCA\\User_LDAP\\Connection","type":"->"},{"file":"/var/www/html/apps/user_ldap/lib/Connection.php","line":228,"function":"establishConnection","class":"OCA\\User_LDAP\\Connection","type":"->"},{"file":"/var/www/html/apps/user_ldap/lib/Connection.php","line":236,"function":"init","class":"OCA\\User_LDAP\\Connection","type":"->"},{"file":"/var/www/html/apps/user_ldap/lib/Access.php","line":1105,"function":"getConnectionResource","class":"OCA\\User_LDAP\\Connection","type":"->"},{"file":"/var/www/html/apps/user_ldap/lib/Access.php","line":1285,"function":"executeSearch","class":"OCA\\User_LDAP\\Access","type":"->"},{"file":"/var/www/html/apps/user_ldap/lib/Access.php","line":972,"function":"search","class":"OCA\\User_LDAP\\Access","type":"->"},{"file":"/var/www/html/apps/user_ldap/lib/Access.php","line":871,"function":"searchUsers","class":"OCA\\User_LDAP\\Access","type":"->"},{"file":"/var/www/html/apps/user_ldap/lib/Jobs/Sync.php","line":176,"function":"fetchListOfUsers","class":"OCA\\User_LDAP\\Access","type":"->"},{"file":"/var/www/html/apps/user_ldap/lib/Jobs/Sync.php","line":145,"function":"runCycle","class":"OCA\\User_LDAP\\Jobs\\Sync","type":"->"},{"file":"/var/www/html/lib/private/BackgroundJob/Job.php","line":54,"function":"run","class":"OCA\\User_LDAP\\Jobs\\Sync","type":"->"},{"file":"/var/www/html/lib/private/BackgroundJob/TimedJob.php","line":60,"function":"execute","class":"OC\\BackgroundJob\\Job","type":"->"},{"file":"/var/www/html/cron.php","line":151,"function":"execute","class":"OC\\BackgroundJob\\TimedJob","type":"->"}],"File":"/var/www/html/lib/private/Log/ErrorHandler.php","Line":92,"CustomMessage":"--"}}