Mobile App Backend API Error Resolution

My mobile app is experiencing constant issues with messages and notifications not syncing properly due to API errors in the backend.

Key Requirements:
- Identify and troubleshoot the source of API errors
- Ensure proper syncing of messages and notifications
- Prevent future occurrences of these backend issues

Ideal Skills:
- Extensive experience with mobile app backend troubleshooting
- Proficient in API error resolution
- Excellent problem-solving skills