From your stack trace it appears as though you're missing the @babel/runtime node module necessary to build your React project:

Error: Cannot find module '@babel/runtime/core-js/get-iterator'

Taking a quick peek at your package.json I don't see it listed there as a dev-dependency. Maybe you could try installing this library and rebuilding your production build and seeing if this error goes away.

npm install @babel/runtime --save-dev

Hopefully that helps!

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