Fatal error: Uncaught Exception: Invalid route callback in /var/www/html/pamel_edu_pa/Core/Router.php:99 Stack trace: #0 /var/www/html/pamel_edu_pa/Core/Router.php(64): Core\Router->executeCallback() #1 /var/www/html/pamel_edu_pa/Core/Application.php(56): Core\Router->dispatch() #2 /var/www/html/pamel_edu_pa/index.php(18): Core\Application->run() #3 {main} thrown in /var/www/html/pamel_edu_pa/Core/Router.php on line 99