Integrate Appsflyer for User Engagement Analytics & Fix Facebook SDK Issues

I'm seeking a skilled developer to integrate Appsflyer into my ReactJS web app primarily for user analytics, specifically user engagement tracking. The project also involves troubleshooting my current Facebook SDK implementation, which is generating error messages.

Ideal Skills:
- ReactJS
- Appsflyer integration
- Facebook SDK troubleshooting
- User analytics interpretation
- Error resolution skills

Key Requirements:
- Implement Appsflyer for user analytics focused on user engagement
- Identify and fix issues with Facebook SDK