Warning: Undefined variable $app in C:\laragon\www\xibo\lib\routes-web.php on line 28

Fatal error: Uncaught Error: Call to a member function get() on null in C:\laragon\www\xibo\lib\routes-web.php:28 Stack trace: #0 {main} thrown in C:\laragon\www\xibo\lib\routes-web.php on line 28