Please follow our LiveZilla Installation Guideline.
Try LiveZilla for 30 days with all functions on your own websites.
When your trial period ends, you are asked to buy a license and add it to your LiveZilla Server configuration.
No need to (re)install or reconfigure anything.
Of course, you can also stick with our free version LiveZilla (ONE) that does not require a paid license. If you don't buy a license, you will be downgraded automatically.
Our Version Comparison will help you to make a decision.