Virtual hosts overlap on 443/80, the first has precedence

Today I got strange error on my AWS production server when I tried to enable SSL on two domains. I'm using Apache/2.2.34 (Unix) version. This has happened in AWS cutomized OS and it has not affect the RHEL or CentOS template on AWS.
The root cuase for the above warning message, it has not enabel the virtual host parameter in both httpd.conf and ssl.conf. Perform the following changes in order to resolve the issue.

If you look at /etc/httpd/conf/httpd.conf file, you will see:

NameVirtualHost *:80 ## Add this line

Update /etc/httpd/conf.d/ssl.conf as follows to make it work:

NameVirtualHost *:443 ### Add this line

Make sure to restart Apache and it will work fine.