Website Bug Fix and Migration

I need someone to fix functionality errors on my website and migrate it to Google Cloud's free tier.

Requirements:
- Fix functionality errors, primarily payment processing issues with an unspecified gateway.
- Migrate loadable website to Google Cloud Free Tier.
- Backend on Supabase, migrate to Google Cloud Free Tier if required.
- SQL on cPanel if necessary.
- Use Google Cloud services like Cloud Run or Firebase.
- Correct payment integration.
- Implement missing features as per requirements provided by us.

Note:
- Budget is low; please bid only if you are a good fit.
- Timeline is 2-4 days.