Make sure that your organization uses G Suite for Education, and that you have administrator access to the account.
GoGuardian Director requires that your organization is using G Suite for Education, and only the administrator of the account is able to set up and deploy GoGuardian Director.
Enable Google+ APIs.
In order for many of the G Suite for Education features and products to work correctly, you will need to allow apps to access Google APIs. You can learn how to here: Enable Google API Access.