Fatal error: Uncaught Error: Call to undefined function app() in C:\xampp\htdocs\erp\storage\framework\views\8881285a1baa3ae714da5359bef66af8.php:4 Stack trace: #0 {main} thrown in C:\xampp\htdocs\erp\storage\framework\views\8881285a1baa3ae714da5359bef66af8.php on line 4