Are you running a website then backup your WordPress is most important save you from bad situation then you can restore it when its needed.
How to take Backup of Website from cPanel
Taking a Regular Backup of your Website is a good practice. Learn here how to take a backup from your website cPanel and secure your website
WPVivid: Free Backup Plugin for WordPress
Free backup plugin for wordpress Required? So Here is the brief about which plugin is best for free backup for your website and how to use it.