Fatal error: Uncaught Error: Class "Nette\Forms\Controls\HiddenField" not found in /var/www/html/smtp/vendor/nette/forms/src/Forms/Controls/CsrfProtection.php:20 Stack trace: #0 {main} thrown in /var/www/html/smtp/vendor/nette/forms/src/Forms/Controls/CsrfProtection.php on line 20