In your MySteinberg account, under “My Products” → “eLicencers”, is your old Soft-eLicenser listed with your Cubase AI 7 license? If so, expand the details. You should then see the “Software reactivation” button. Otherwise, under “My Products” → “Software”, your Cubase AI 7 should be listed. Expand the details and you will see the “Software reactivation” button. You will need your new Soft-eLicenser number (found in the eLCC app), to reactivate.