Fatal error: Uncaught Error: Class 'Symfony\Component\Form\Exception\InvalidArgumentException' not found in /var/www/legtux.org/users/weboconsulting/www/vendor/symfony/form/Exception/InvalidConfigurationException.php:14 Stack trace: #0 {main} thrown in /var/www/legtux.org/users/weboconsulting/www/vendor/symfony/form/Exception/InvalidConfigurationException.php on line 14