Fatal error: Uncaught Error: Call to undefined function app() in C:\xampp\htdocs\erp\storage\framework\views\eb6771b49792a15fddee083a40218b1d.php:4 Stack trace: #0 {main} thrown in C:\xampp\htdocs\erp\storage\framework\views\eb6771b49792a15fddee083a40218b1d.php on line 4