Fatal error: Uncaught Error: Call to undefined function app() in C:\xampp\htdocs\kotsch.tech\kotsch-tech - Kopie (2)\storage\framework\views\bab061165079b345e193f5d0757f54c6.php:10 Stack trace: #0 {main} thrown in C:\xampp\htdocs\kotsch.tech\kotsch-tech - Kopie (2)\storage\framework\views\bab061165079b345e193f5d0757f54c6.php on line 10