Backend Fix for Node.js Application

I'm looking for a skilled developer to fix issues with my existing backend, which is built on JavaScript (Node.js). Currently, I'm facing error messages that need to be resolved.

Key Requirements:
- Fix existing backend errors
- Improve database structure understanding

Ideal Skills:
- Proficient in Node.js
- Strong debugging and database knowledge
- Experience with error handling and performance optimization

Additionally, I want you to list all database into Excel.