Cubase 11 installing

Try to update from Cubase 8.5 to Cubase 11 , but get stuck with th e installation with the error message …
The installation is not working and stops : try installation again using a valid copy of the installation package

A valid copy ? : in my steinberg Cubase 11 is registrated…has somthing to do wih e-licenser ?
Using windows 10 pro 64 bit

Don’t no if a existing cubase 8.5 is necessarry: the installation says nothing about it
Seems to me that this is a full version Cubase 11 what has to be installed.

Finally its working :smile:
i installed the e-licencer again and checked if Cubase 11 was in my steinberg …yes
Now i could start …solved issue