Fatal error: Uncaught Error: Call to undefined function app() in C:\xampp\htdocs\adminlte3\storage\framework\views\1020ea4f5ee5e16af8a36ff7f67b514f5e148c05.php:1 Stack trace: #0 {main} thrown in C:\xampp\htdocs\adminlte3\storage\framework\views\1020ea4f5ee5e16af8a36ff7f67b514f5e148c05.php on line 1