Downloaded the elisencer program and installed it.
Went onto Steinberg account and tried to reactivate my license, I entered my old activation code but then get an error message " The Old e-License number you have entered is either incomplete or not correct"
I registered Cubase one month ago when I bought a new Yamaha s90XS.
The old activation code that I entered is the code displayed in : Show Registered Products - Your activation codes received by MySteinberg - Activation code Cubase AI5.