Fatal error: Uncaught Error: Class "Nette\InvalidStateException" not found in /var/www/live/demo8.thesynergate.com/sms_api_v2/vendor/nette/schema/src/Schema/ValidationException.php:18 Stack trace: #0 {main} thrown in /var/www/live/demo8.thesynergate.com/sms_api_v2/vendor/nette/schema/src/Schema/ValidationException.php on line 18