MEAN stack Portfolio website

I created a portfolio website with a MEAN stack. I have had a lot of trouble launching it through AWS Lightsail. I managed to get the Angular frontend up on www.micahbessolo.com, but there is a 'Contact Me' page that uses an express/nodejs backend to send the data to MongoDb. This works perfectly in development but doesn't work in production on my domain.

I would love to get this backend working and learn how to do it also

the github code is https://github.com/micahbessolo/portfolio_site