I have a MERN app and I have successfully deployed it on an AWS EC2 instance. In the production environment, the app is served on port 80.
So when I try to access it on the browser by entering:

EC2_INSTANCE_PUBLIC_IP_ADDRESS:80

or

EC2_INSTANCE_PUBLIC_IP_ADDRESS

It just keeps loading until it finally reaches this state:

This site can’t be reached EC2_INSTANCE_PUBLIC_IP_ADDRESS took too long to respond.

Try:

Checking the connection Checking the proxy and the firewall ERR_CONNECTION_TIMED_OUT

I tried to run the frontend app separately as I do in the development environment on port 3000, so when I try to access it on

EC2_INSTANCE_PUBLIC_IP_ADDRESS:3000

The same thing happens.
Any idea what's going on?

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