Error database

Ini Gimana ya errpr :

Fatal error: Uncaught PDOException: SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'FROMmahasiswa' at line 1 in D:\xampp\htdocs\phpmvc\app\core\Database.php:51 Stack trace: #0 D:\xampp\htdocs\phpmvc\app\core\Database.php(51): PDOStatement->execute() #1 D:\xampp\htdocs\phpmvc\app\core\Database.php(55): Database->execute() #2 D:\xampp\htdocs\phpmvc\app\models\Mahasiswa_model.php(13): Database->resultset() #3 D:\xampp\htdocs\phpmvc\app\controllers\Mahasiswa.php(6): Mahasiswa_model->getAllMahasiswa() #4 D:\xampp\htdocs\phpmvc\app\core\App.php(33): Mahasiswa->index() #5 D:\xampp\htdocs\phpmvc\public\index.php(4): App->__construct() #6 {main} thrown in D:\xampp\htdocs\phpmvc\app\core\Database.php on line 51

ini Line 49,50,51,52 nya :

public function execute() { $this->stmt->execute(); }