WordPress Backend Fix

I need an experienced WordPress developer to rectify database errors in the back-end admin panel of my website.

Key Requirements:
- Identify and fix database errors
- Ensure site speed and functionality are optimized
- Provide a detailed report of the issues and fixes

Ideal Skills:
- Strong expertise in WordPress and database management
- Proven experience in troubleshooting back-end issues
- Knowledge of performance optimization techniques

Please share your relevant experience and approach to this task.