Fatal error: Uncaught TypeError: call_user_func_array(): Argument #1 ($callback) must be a valid callback, class App\Controllers\ContactController does not have a method "index" in /dnjsdud1127/www/app/Core/App.php:36
Stack trace:
#0 /dnjsdud1127/www/app/Core/App.php(36): call_user_func_array(Array, Array)
#1 /dnjsdud1127/www/index.php(15): App\Core\App->__construct()
#2 {main}
  thrown in /dnjsdud1127/www/app/Core/App.php on line 36