Fatal error: Uncaught Error: Call to undefined function app() in C:\xampp\htdocs\bcss\storage\framework\views\f4e9d7beae3cf31db9c4c6c7a7eb1f8f.php:4 Stack trace: #0 {main} thrown in C:\xampp\htdocs\bcss\storage\framework\views\f4e9d7beae3cf31db9c4c6c7a7eb1f8f.php on line 4