Fatal error: Uncaught Error: Call to undefined function app() in C:\xampp\htdocs\bcss\storage\framework\views\b59bde4917e82ed6690d8180049d6697.php:4 Stack trace: #0 {main} thrown in C:\xampp\htdocs\bcss\storage\framework\views\b59bde4917e82ed6690d8180049d6697.php on line 4