I need a real Zen-Cart Expert to solve problems with database connection and upgrade to the latest version

I am looking for a real Zen-Cart Expert who can help me with my project.

Project Title: Zen-Cart Database Connection and Upgrade

Skills and Experience:
- Expertise in Zen-Cart
- Extensive experience in resolving database connection issues
- Knowledge of upgrading Zen-Cart to the latest version

Project Requirements:
- I am currently using Zen-Cart version 1.5.6
- The specific problem I am encountering is that the database stops connecting
- I need someone who can troubleshoot and fix this issue
- Additionally, I would like to upgrade Zen-Cart to the latest version

Timeline:
- I expect this project to be completed within 1-2 weeks

If you have the necessary skills and experience, please reach out to me. Thank you!