License problem

I explain my problem here
I got my GSA workbook a few years ago and have it installed on a vps. My license was canceled and I was able to get it back from the owners. And I managed to install on my desktop and it works well since that time.
The details of my registration and license are lost and I now want to transfer my GSA to another VPS to start working.
I do not know how I get the information
I wrote to support but they did not answer me either
Any help here?