infocubic Can you please let us know whether mail function works with this template or not?
The issue isnt template specific as this is core Wordpress built-in function to send email. Kindly confirm if the issue still persists while assigning Default theme
You can also consider using SMTP instead of PHP by installing plugin as mentioned in this tutorial or configure the plugin accordingly, which is mentioned in initial excerpt of tutorial
Also, This tutorial can be of help for troubleshooting purposes
