Fatal error: Uncaught Error: Call to undefined function app() in C:\laragon\www\bookstack\storage\framework\views\8e2e4ae60278f16e8925de635e9bec80.php:1 Stack trace: #0 {main} thrown in C:\laragon\www\bookstack\storage\framework\views\8e2e4ae60278f16e8925de635e9bec80.php on line 1