Pet Shop ECom Gatsby, DatoCMS and

We had a website created for a small petshop using Shopify, DatoCMS and Gatsby. It was done few years back and the agency closed down. The code hasn't been updated or libraries. Need to bring the code and libraries up to date to then launch the website.

I have the mastercode and the website figma. The figma file is too large to be attached, I have attached the Mastercode ZIP. I would want a quote based on the code prior to agreeing.