Deployment giving error on Netlify

I builded a multiswap project. Here is the source code and now i want to deploy it on netlify. I tried deploying manually(created build using parcel and then deployed on netlify) but after deploying it is giving error “Error performing swap” but when i am running on localhost, it’s working completely fine. I am attaching the project structure which i used to deploy on netlify.

@skpkss It’s likely due to whatever you have coded for express, it’s probably not even running.

See the following:

[Support Guide] Can I run a web server, HTTP listener, and/or database at Netlify?
https://answers.netlify.com/t/support-guide-can-i-run-a-web-server-http-listener-and-or-database-at-netlify/3078

Express on Netlify
https://docs.netlify.com/frameworks/express/