Fatal error: Uncaught Error: Call to undefined function app() in /opt/lampp/htdocs/forum/flarum/storage/views/43cdaa4e55cd164f48db4dcc5aedc2d165c33f09.php:1 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/forum/flarum/storage/views/43cdaa4e55cd164f48db4dcc5aedc2d165c33f09.php on line 1