Download to Cubase AI 10

Hi! Can I upload something to the Cubase AI 10 using the Steinberg Download Assistant?
When I try to enter the Download Access Code, it reports that it is being used by another user.
Activation Manager does not allow to log in.

If you’re switching computers and you’ve already activated Cubase AI 10, please go through the reactivation process to move the license to your new computer:

I reactivated in October. Cubase works. I want to download libraries.

In that case, you can just download the content and plug-ins for Cubase AI 12 from the Steinberg Download Assistant. They’re the same as Cubase 10.

Is not downloading. The reason is stated above.