Won´t get rid of ReverseProxy message

Hello community,
im facing the issue that my nextcloud tells me that my Reverse Proxy configuration is not correct.
I do let my users access the cloud via NGINX Reverse Proxy (all on Debian 12, in the same subnet), but i have tried various things in my config, all with no luck.

So here is my config.php

<?php
$CONFIG = array (

  'trusted_domains' => 
  array (
    0 => 'mydomain.de',
    1 => '192.168.50.*',
    2 => 'localhost',
    3 => '127.0.0.1',
    4 => 'mydomain.de',
    5 => 'MYIP',
  ),
  'trusted_proxies' => 
  array (
    0 => '192.168.50.5',
    1 => '192.168.50.0/24',
  ),
  'forwarded_for_headers' => 
  array (
    0 => 'HTTP_X_FORWARDED',
    1 => 'HTTP_FORWARDED_FOR',
  ),
  'overwriteprotocol' => 'https',
  'datadirectory' => '/var/www/nextcloud/data',
  'overwrite.cli.url' => 'https://mydomain.de',
  'dbtype' => 'mysql',
  'version' => '27.1.1.0',
  'logtimezone' => 'UTC',
  'installed' => true,
  'maintenance' => false,
  'theme' => '',
  'loglevel' => 3,
  'updater.release.channel' => 'stable',
  'memcache.local' => '\\OC\\Memcache\\APCu',
  'app_install_overwrite' => 
  array (
    0 => 'quota_warning',
    1 => 'admin_notifications',
    2 => 'keeweb',
    3 => 'whiteboard',
    4 => 'integration_whiteboard',
  ),
  'mail_smtpmode' => 'smtp',
  'mail_smtpsecure' => 'tls',
  'mail_sendmailmode' => 'smtp',
  'mail_from_address' => 'info',
  'mail_domain' => '',
  'mail_smtpauthtype' => 'PLAIN',
  'mail_smtphost' => '',
  'mail_smtpport' => '587',
  'mail_smtpdebug' => 'true',
  'dbname' => 'nextcloud',
  'dbhost' => 'localhost',
  'dbuser' => 'nextcloud-dbuser',
  'dbpassword' => '',
  'mysql.utf8mb4' => true,
  'default_locale' => 'de_DE',
  'default_language' => 'de',
  'mail_smtpauth' => 1,
  'mail_smtpname' => '',
  'mail_smtppassword' => '',
  'encryption.legacy_format_support' => false,
  'encryption.key_storage_migrated' => false,
  'default_phone_region' => 'DE',
  'preview_max_memory' => 1280,
  'allow_local_remote_servers' => true,
);

Is there anything wrong? I also tried this for the trusted_proxies thing

  'trusted_proxies' => ['192.168.50.5'],

with the same result.

Thanks in advance!

I solved it by using a /32 address for the trusted proxy.

    0 => '192.168.50.5/32',

Now the message is gone.