I found this problem when I want hosting my React Native web app in cpanel

I'm currently developing a website using React Native, when I read about React Native I got the info that React Native can be used as both a web application and a mobile application, so I tried it.

Currently, my website is finished and can be run on localhost

but right now I have a problem when I want to host the website using Cpanel.

But instead of calling App, it just shows my code in index.js like this

Do you have a solution? thank you