( ! ) Fatal error: Uncaught Error: Class "Symfony\Contracts\EventDispatcher\Event" not found in /var/www/html/vendor/symfony/form/FormEvent.php on line 19
( ! ) Error: Class "Symfony\Contracts\EventDispatcher\Event" not found in /var/www/html/vendor/symfony/form/FormEvent.php on line 19
Call Stack
#	Time	Memory	Function	Location
1	0.0001	357952	{main}( )	.../FormEvent.php:0