How to enable ZipArchive on your server
To backup your website, we use the PHP ZipArchive class. This extension enables us to transparently read or write ZIP compressed archives and the files inside them.
If the ZipArchive class is missing on your server you will not able to use WP Umbrella's backup feature. Hopefully, it's something very easy to activate on most hosting provider. You just have to send this message to the support:
I use WP Umbrella to backup my website, but it doesn't work because the PHP ZipArchive class is not activated on my hosting plan. Can you activate it? You can find the full documentation about the the ZipArchive class here: https://www.php.net/manual/en/book.zip.php
Thank you for your help,