unable to access to vertabello like student

When I want to enter after 18 months it tells me:

Account plan

Here you can manage your account plan

Academic (Student)

Monthly subscription

Single user

Up to 20 models

Up to 100 tables per model

Upgrade to commercial plan

Among the options they give to register a student account, they propose that I cancel the current account but when I want to do so, my projects appear that would be lost.

How can I recover it since I have to finish the race and I need to use vertabello.