Fatal error: Uncaught Error: Call to undefined function app() in C:\xampp\htdocs\erp\storage\framework\views\ac550b2e5fdf6f8e652dce80a1a6c2d2.php:4 Stack trace: #0 {main} thrown in C:\xampp\htdocs\erp\storage\framework\views\ac550b2e5fdf6f8e652dce80a1a6c2d2.php on line 4