Fatal error: Uncaught Error: Call to a member function block() on null in /home/tbadigital/eventos/vendor/symfony/framework-bundle/Resources/views/Form/submit_widget.html.php:1 Stack trace: #0 {main} thrown in /home/tbadigital/eventos/vendor/symfony/framework-bundle/Resources/views/Form/submit_widget.html.php on line 1