Fatal error: Uncaught Error: Call to undefined function app() in C:\xampp\htdocs\erp\storage\framework\views\fe50de2c1458f1daec196b273742b3d4.php:4 Stack trace: #0 {main} thrown in C:\xampp\htdocs\erp\storage\framework\views\fe50de2c1458f1daec196b273742b3d4.php on line 4