In Updater.php line 83: Class ZipArchive not found

Hi,
I have version 2.0.27 of Akaunting installed on MY Plesk server, and am testing it, to see if I can start transferring several companies. Before I transfer I want to be sure that errors like THIS will not happen.
When I try to update, I get this message:
Exit Code: 1(General error)
Working directory: /var/www/vhosts/klijent.com/public_html/office24
Output:
================
Downloading core update...
Unzipping core update...
In Updater.php line 83:
Class ZipArchive not found
Error Output:
================
I have PHP 7.3.29 installed on my server, and also zip is enabled.
zip
Zip enabled
Zip version 1.15.4
Libzip headers version 1.5.1
Libzip library version 1.5.1

What should I do to enable smooth updates?
Thx in advance.

Are there some Akaunting.com IP addresses that I could write as safe to the settings?