Fatal error: Uncaught Error: Class "Illuminate\Database\Query\Grammars\Grammar" not found in D:\xampp\htdocs\_runing\sales-manager-system\vendor\laravel\framework\src\Illuminate\Database\Query\Grammars\MySqlGrammar.php:9 Stack trace: #0 {main} thrown in D:\xampp\htdocs\_runing\sales-manager-system\vendor\laravel\framework\src\Illuminate\Database\Query\Grammars\MySqlGrammar.php on line 9