Error: App\Controllers\IndexController handler class cannot be loaded

#0 [internal function]: Phalcon\Mvc\Dispatcher->throwDispatchException()
#1 [internal function]: Phalcon\Dispatcher\AbstractDispatcher->dispatch()
#2 /home/investigacion/web/investigacion.org.pe/public_html/public/index.php(49): Phalcon\Mvc\Application->handle()
#3 {main}