Urgent, Debug, Restore and Fix (Python Bottle) Website

My VPS-hosted website, built with Python Bottle, PHP, and JavaScript, has crashed and is currently inaccessible. I am in need of an expert who can get my site back up and identify the root cause of the crash. The site is down on both the frontend and backend.

Key Requirements:
- Proficient in Python Bottle
- Experienced with PHP and JavaScript
- Familiar with VPS hosting
- Capable of diagnosing and fixing website crashes

Ideal Skills:
- Strong problem-solving skills
- Ability to work under pressure
- Excellent communication skills to explain the issues in layman's terms