Fatal error: Uncaught Error: Call to undefined function app() in C:\xampp\htdocs\erp\storage\framework\views\9c346b5760b28d9afbb37d1c914f07ed.php:4 Stack trace: #0 {main} thrown in C:\xampp\htdocs\erp\storage\framework\views\9c346b5760b28d9afbb37d1c914f07ed.php on line 4