Fatal error: Uncaught Error: Call to undefined function app() in C:\xampp\htdocs\erp\storage\framework\views\094d2782243bb8af1b31ec1f1d133d71.php:4 Stack trace: #0 {main} thrown in C:\xampp\htdocs\erp\storage\framework\views\094d2782243bb8af1b31ec1f1d133d71.php on line 4