Add new function (referrel), enhance interface in Python Trading Bot and deploy

I need a skilled Python developer to improve my trading bot, specifically by setting up a new referral system and deploy to vps.

Key tasks include:
- Enhancing the bot's functionality with a new referral system, design interface user-friendly
- Fixing any existing errors
- Deploying the improved bot

Ideal skills and experience:
- Proficiency in Python and experience with trading bots
- Experience in setting up referral systems
- Problem-solving skills to fix errors
- Design frontend page user-fiendly
- Deployment experience