There are numerous ways to update the theme.
I suggest you look at this https://www.8theme.com/documentation/xstore/theme-installation/theme-update/ and in particular update your site by following the “Update using Automatic Updates” section.
It is suggested you backup your site before attempting to update the theme.
You may have a backup plugin already installed. Log into WordPress and check your installed plugins. I have a backup plugin called WP File Manager.
If you don’t have a plugin, then try the below:
https://wordpress.org/plugins/updraftplus/
I’ve used it before and it’s great. I’m unable to find a link to the WP File Manager plugin but it doesn’t matter as the above link should help backup your site.















