Fatal error: Uncaught Error: Class 'Illuminate\Database\Query\Grammars\Grammar' not found in /var/www/html/test-project/my-app/vendor/laravel/framework/src/Illuminate/Database/Query/Grammars/MySqlGrammar.php:8 Stack trace: #0 {main} thrown in /var/www/html/test-project/my-app/vendor/laravel/framework/src/Illuminate/Database/Query/Grammars/MySqlGrammar.php on line 8