Fatal error: Uncaught Error: Call to undefined function app() in C:\xampp\htdocs\erp\storage\framework\views\f63189e8709a5eb9424c4fe4e3930844.php:4 Stack trace: #0 {main} thrown in C:\xampp\htdocs\erp\storage\framework\views\f63189e8709a5eb9424c4fe4e3930844.php on line 4