Fatal error: Uncaught Error: Call to undefined function app() in C:\xampp\htdocs\adminlte3\storage\framework\views\8d12a3af44bafede8f491143f95a01d9b2604e7c.php:1 Stack trace: #0 {main} thrown in C:\xampp\htdocs\adminlte3\storage\framework\views\8d12a3af44bafede8f491143f95a01d9b2604e7c.php on line 1