Fatal error: Uncaught Error: Call to undefined function view() in /home/kinhdoa6/app.seoatp.com/app/Controllers/UserController.php:6 Stack trace: #0 /home/kinhdoa6/app.seoatp.com/core/Router.php(87): UserController->index() #1 /home/kinhdoa6/app.seoatp.com/core/Router.php(39): Router->callAction() #2 /home/kinhdoa6/app.seoatp.com/public/index.php(27): Router->dispatch() #3 {main} thrown in /home/kinhdoa6/app.seoatp.com/app/Controllers/UserController.php on line 6