Hi there,
What type of Creative Cloud licensing your school owns?
Your school or college must be a current customer with an active Device, Shared Device License, or Serial Number plan to get at-home access for students and teachers, and these temporary licenses are provided pursuant to your schools existing agreement for use of Adobe creative software and will be available until May 31, 2020, or until your students return to campus, whichever is sooner.
For more details see https://helpx.adobe.com/enterprise/kb/covid-19-education-labs.html.
I would recommend contacting your school's IT department or Admin for this issue.