Hi,
let’s try to get it up and running.
First let us remove your VST Connect PRO installation
Delete the following files and folder
File : /Library/Application Support/Steinberg/Components/vstconnect.bundle
Folder : /Library/Audio/Plug-Ins/VST3/Steinberg/VST Connect
Let us remove your local Cubase preferences. Delete the following folder
Folder : /Users/YourUserName/Library/Preferences/Cubase 9.5
Be sure that you are running the latest Cubase version (9.0.40)
The latest installer can be downloaded here
https://www.steinberg.net/en/support/downloads/downloads_cubase_pro_9.html
Now start Cubase, create a new and fresh project and run “Cubase // Menu // VST Cloud // VST Connect SE // Create VST Connect”
Is it working?
Have a nice day,
Michael