Fatal error: Uncaught Error: Call to undefined function app() in C:\xampp\htdocs\erp\storage\framework\views\84c05402b8f61413a8657c3fa348d7e4.php:4 Stack trace: #0 {main} thrown in C:\xampp\htdocs\erp\storage\framework\views\84c05402b8f61413a8657c3fa348d7e4.php on line 4