Fatal error: Uncaught Error: Call to undefined function app() in C:\xampp\htdocs\erp\storage\framework\views\ad4edee9b5a70a3c80f69794038581fc.php:4 Stack trace: #0 {main} thrown in C:\xampp\htdocs\erp\storage\framework\views\ad4edee9b5a70a3c80f69794038581fc.php on line 4