It will be looking in C:\bb\Data\libx64\dllelastiquePro3.dll
as you can't start it to set it to the external path.
It saves a settings file somewhere with that path, I will look more to find it as things have changed over the years ???
If you copy that Data folder from the external drive and make a new folder C:\bb to paste it to it should start the VST, but it may need the Preferences folder also ??
If it starts you can then go into the Prefs in the Plugin and set the paths to the external drive.
I will look again and at it and get back to you, but you can try coping that folder and see if it prompts for other files or not, in the mean time.