LE move to new computer issue

I went to reactivate my license but it keeps asking for the new Soft -e-Licenser number! But I don’t have one, I only have my old number belonging to the software I have on the computer. I’m trying to reactive the new license onto my new computer that has not got the Cubase AI 9.5 installed because it is on the other computer and it was a download I got when I purchased a Steinberg product. So how do I move my Cubase software from the other computer to the new computer??