Fix Next.js E-commerce Project + Build Backend

I recently obtained a public e-commerce project built with Next.js from GitHub. The project runs on my side, but several issues are currently preventing it from functioning properly. For example, the category... (Budget: $30 - $250 USD, Jobs: Google Chrome, JavaScript, MongoDB, Next.js, Node.js, NoSQL Couch & Mongo, PHP, PostgreSQL, Prisma, Supabase)