i am getting "This site can’t be reached" ERROR

Its IP address is a private IP address.
Try accessing the site from a browser using the EC2 public IP address.
Also make sure that the EC2 is running on a public subnet.
If you are running on a public subnet and do not have a public IP address, try setting up an Elastic IP.
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/elastic-ip-addresses-eip.html#working-with-eips