Hi
I’m using this great plugin on different servers and while it just works on some setups I have experienced that some hosts does not have mysqli module and ZipArchive compiled into the Apache / PHP build.
The mysqli module will prevent the script from starting as the System requirements check find it. The ZipArchive however throws a runtime error just after you start the scripts.
In most cases you can ask you host to add this if you run on cPanel. If you have a more advanced setup with WHM access (typical for VPS and dedicated servers) you can use the EasyApache (Apache Update) tool to add mysqli module and ZipArchive yourself.