Netlify is not meant to run Node.js servers: [Support Guide] Can I run a web server, HTTP listener, and/or database at Netlify?. With that being said, you’re yourself sending process.exit(1) which is causing the build to fail:
This is a code issue, not a Netlify problem. Here’s your deploy log: Deploy details | Deploys | jade-cactus-2ebf36 | Netlify