Fatal error: Uncaught Error: Call to undefined function app() in D:\NTG_App\www\NTG_KPI\storage\framework\views\9717d3cc7ee2c635b0d93d8d42bc61f608003e9d.php:4 Stack trace: #0 {main} thrown in D:\NTG_App\www\NTG_KPI\storage\framework\views\9717d3cc7ee2c635b0d93d8d42bc61f608003e9d.php on line 4