I am using the Vercel integration to deploy my app to Vercel. Everything runs fine on my dev server, but when I deploy to Vercel, I immeiately get a 500 error, and my app won't run.
If I build a production build and try to run npm run preview it tells me:
[preview] The @astrojs/vercel/serverless adapter does not support the preview command.
How can I debug a production build? Any other tips for approaching this problem?