React NodeJS 16 Website Update & UI Enhancement

My current website built on React NodeJS 16 is failing to compile due to being on an outdated version. I need a professional to update it, ensuring API integrations are retained and enhancing the user interface while keeping with the existing design theme.

Key Requirements:
- Update website to latest React NodeJS version
- Ensure all API integrations are retained post update
- Improve user interface during the update
- Follow existing design theme for UI enhancements

Ideal Skills:
- Proficiency in React and NodeJS
- Experience with API integrations
- UI/UX design skills
- Ability to follow design guidelines