I need to set up a react-native app based on wordpress that I buy from themeforest.

I recently bought a wordpress theme that comes with a react-native app. But I have not been able to configure it, I get (the develompent server returner response error code: 500, when run react on phone android). and I don't have time to research. I need someone to configure it and upload it to the appstore for IOS, since I don't have a MAC.

theme : https://themeforest.net/item/propertya-real-estate-wordpress-theme/27293845