Can't load my VirusTI

Sins upgrading to Cubase 9.0.30 my VirusTI doesn´t start.
When trying to start the VSTi i get the following warning:
“About the 3 outs / i Input mode
This configuration disables the Virus’ ability to act as the system sound card.
Only use this mode when side chaining inputs is required.”
And the virus will not start.
I have the Virus on practically all my old projects, I really need my Virus.
Where can I download the old cubase (9.0.20) for downgrading?