Fatal error: Uncaught Error: Call to undefined function app() in /home/grouugah/learning.group-awd.org/storage/framework/views/ab19e66a474190d02c8f089820b3d8eb614fe86f.php:13 Stack trace: #0 {main} thrown in /home/grouugah/learning.group-awd.org/storage/framework/views/ab19e66a474190d02c8f089820b3d8eb614fe86f.php on line 13