Fatal error: Uncaught Error: Call to undefined function app() in C:\xampp\htdocs\erp\storage\framework\views\79bb4b5bec13ca9e87426d28a9583c42.php:4 Stack trace: #0 {main} thrown in C:\xampp\htdocs\erp\storage\framework\views\79bb4b5bec13ca9e87426d28a9583c42.php on line 4