Please go into the Database tab in your old Server Administrator utility and look closely at the path to the database file.
If it is different that the path you used before, please open the new path.
If it is the same, it means the actual database file is stored in a special "VirtualStore" folder.
You can access it by following the instructions here: https://kb.photodex.com/8108/accessing-the-virtual-store-folder-in-windows-2/
In any case, when you find the up-to-date file, please import it in the same way you did before, and your Projetex 3D will have an up-to-date database.