reactjs and laravel on server

Hi everyone , i developed reactjs and laravel app and upload it on bluehost server

it run untile card body in example component not show DisplaQuestions component

<div className="card-body">
                    <Switch>
                        <Route path="/" exact component={DisplaQuestions} />
                        {/* <Route path="/after-voting" exact component={AfterVoting} /> */}
                    </Switch>
                </div>

what is the reason and there is any solution for that thanks