Fatal error: Uncaught Error: Call to undefined function app() in C:\xampp\htdocs\erp\storage\framework\views\c1c32ab151b9c571014e48d75f9945d1.php:4 Stack trace: #0 {main} thrown in C:\xampp\htdocs\erp\storage\framework\views\c1c32ab151b9c571014e48d75f9945d1.php on line 4