WordPress website backups are extremely important! They need to be regular, automated, and offsite (i.e. they must NOT be stored on your website server). We arrange weekly backups to an external Dropbox account, where 8 backups are stored – i.e. 2 months worth of your website.
It’s not wise to rely solely on your website host to backup your website for you. You need to be proactive, and make sure you have regular, reliable, automated website backups. You can’t afford to lose any website data because a server crashed, an update failed, or conflicted with existing software, or your website was compromised or hacked. Always make sure you have a working backup to restore immediately!