Fatal error: Uncaught Error: Call to undefined function app() in C:\xampp\htdocs\adminlte3\storage\framework\views\99b1bfcb1788f986f46a2ddcb3a3eecde77c06bf.php:1 Stack trace: #0 {main} thrown in C:\xampp\htdocs\adminlte3\storage\framework\views\99b1bfcb1788f986f46a2ddcb3a3eecde77c06bf.php on line 1