There is an easier way to unblock Scaler.
Go to C:\Users\(your username)\AppData\Roaming\Steinberg\Cubase 14_64 and delete Cubase Pro VST3 Cache. After that Cubase needs to read in all the VST3 plugins again which takes some time. But after that you are fine. No need to deinstall and reinstall your Scalermusic software.
If you want a shortcut to get to AppData, Open the Windows menu and type in %appdata%