As the error message suggests, you are hitting one of our limits for maximum number of routes. You can review next.config.js which should contains redirects or rewrites and help you to understand the number of routes your application have. additionally, you may have few additional defined within:

• API routes using the redirect() function
• getServerSideProps or getStaticProps containing redirect objects
• NextResponse.redirect() calls within middleware.ts

We'd recommend reducing the number of redirects/rewrites or moving them over to Edge Middleware which doesn't have this route limit. We have a guide which covers the different options and how to implement them here: https://vercel.com/guides/how-can-i-increase-the-limit-of-redirects-or-use-dynamic-redirects-on-vercel

In the first instance to get your site up and running, we'd recommend trying to remove unused redirects/rewrites or implementing regex for specific cases that would match certain patterns. Once that's been done, you can then look at other options such as using Edge Middleware to handle these.