Kotlin to React Android App Conversion

I'm seeking a skilled developer to convert my a sample Kotlin-based Android app to React. I have made a small sample Toy app that you have to work on. Once you solve this issue confidently, I will give the complete project to you.
The Kotlin code will be provided along with a sample React code that we've developed, which unfortunately crashes upon launch. The core functionality of the original app involves fetching and displaying data from an external API.

Key Requirements:
- Proficient in Kotlin and React
- Experience in Android app development
- Troubleshooting skills to fix crashing issues
- Understanding of data fetching and display from external APIs

Your task will be to ensure the new React app mirrors the functionality of the original Kotlin app, with a focus on handling data from external APIs.