about cubase zero downtime plz help me


I am high school student who is studying composition

I bought cubase9 pro education version and registered my profile in Steinberg web site and

there was no problem.

But, few weeks a go, my cubase e-licenser was broken up.

so I bought a new e-licenser and wanted to use zero down time.

But, although, I registered my cubase information in Steinberg homepage,

I can’t find cubase zero down time buttton.

There is an picture.

what is the problem? although, I sent a mail to Steinberg, there is no answer.

I didn’t do anything about few weeks.

Could you help me plz?