Fatal error: Uncaught Error: Class "Illuminate\Database\Query\Grammars\Grammar" not found in C:\xampp\htdocs\my-app\my-new-app\vendor\laravel\framework\src\Illuminate\Database\Query\Grammars\PostgresGrammar.php:11 Stack trace: #0 {main} thrown in C:\xampp\htdocs\my-app\my-new-app\vendor\laravel\framework\src\Illuminate\Database\Query\Grammars\PostgresGrammar.php on line 11