Fatal error: Uncaught Error: Call to undefined function app() in /opt/lampp/htdocs/forum/flarum/storage/views/67b64f6df6da8b027adf878c5b991e3f220d131d.php:1 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/forum/flarum/storage/views/67b64f6df6da8b027adf878c5b991e3f220d131d.php on line 1