Fatal error: Uncaught Error: Interface "Nette\Schema\Schema" not found in C:\xampp\htdocs\cms-propay\vendor\nette\schema\src\Schema\Elements\Structure.php:18 Stack trace: #0 {main} thrown in C:\xampp\htdocs\cms-propay\vendor\nette\schema\src\Schema\Elements\Structure.php on line 18