Fatal error: Uncaught Error: Call to undefined function app() in C:\xampp\htdocs\erp\storage\framework\views\df11e1e65e75d99708946ed291bd4166.php:4 Stack trace: #0 {main} thrown in C:\xampp\htdocs\erp\storage\framework\views\df11e1e65e75d99708946ed291bd4166.php on line 4