Fatal error: Uncaught Error: Call to undefined function app() in C:\xampp\htdocs\erp\storage\framework\views\b14374d63bb8b01b848a4ca038551f38.php:4 Stack trace: #0 {main} thrown in C:\xampp\htdocs\erp\storage\framework\views\b14374d63bb8b01b848a4ca038551f38.php on line 4