Agent_Orange

Hi. Good afternoon. We have a full version of ChartFx. Our Old server was broken and the HDD has been formated. Now we want to install ChartFx to a new Server using the license from the Old One. How can we use move the license to the new server? I have read some forums and it says the we need to un-install the chartfx from old server. But that one would be impossible to our case. Thanks