Fatal error: Uncaught TypeError: BarberModel::getBarberById(): Return value must be of type array, null returned in /var/www/html/mvc/model/barber.php:28 Stack trace: #0 /var/www/html/mvc/controller/barber.php(11): BarberModel::getBarberById() #1 /var/www/html/good_day.php(63): BarberController->detail() #2 {main} thrown in /var/www/html/mvc/model/barber.php on line 28